"*Ugh!* I can't *believe* you!!" Kazue said, picking up her soda and dumping it on Yusuke's head. She stood up, her breasts bouncing a bit as she did, and stormed out of the restaurant.
 
"Wait, Kazue, come back!" Yusuke called after his now ex-girlfriend, "I know I shouldn't have done that, just give me another chance!" Kazue ignored him, however, and he ran after her. She got into her car and slammed the door, pulling the seatbelt across her rather large chest. Yusuke was close behind. Once she was fastened in, she rolled down the window, and Yusuke flinched a bit as she yelled at him, *"Lecher!!"* before driving away.
 
"Aw, man." Yusuke said, slumping in place, "There goes the last pair of H-cups that *I'll* be seeing for a while." Kazue was now just the latest in a long line of ex-girlfriends on Yusuke's part.
 
Yusuke Mizuhara was an eighteen-year-old college student who was currently attending the local university, having moved here to Fukuoka from Yokohama just recently. At the moment, he was wearing a teal t-shirt and light gray slacks. He ran his hand over his black hair, trying to get the soda off. He'd need to go home and shower. His greenish-hazel eyes looked around and saw a bus approaching; he didn't have a car, so he'd need to get on there in order to get back to his apartment. He jogged over to the bus and got on, paying the fee and sitting down. As soon as he did, he put his book bag in his lap, and for good reason: several other women were on the bus, and almost all of them were rather busty for Japanese.
 
Yusuke was a smart man, majoring in mathematics in the hopes of one day becoming a professor in the field, but he had one weakness: boobs. He had a thing for busty women, and by now was something of a connoisseur of porn magazines that specialized in large-breasted ladies. He was sharp, and could roughly tell what a woman's cup size was with a single look. He could even tell whether or not they were fake, no matter how subtle their surgery had been. That was what had drawn him to Kazue, one of his classmates. But now he'd jumped the gun and was never going to get past second base with her.
 
<Story of my life,> Yusuke thought as the bus began to move. He looked around, glancing at the women on the bus. There was a cosmetic surgery institute on campus where they were developed several new plastic surgery procedures. One of these was breast augmentation, which was being tested by offering implants to students cheap. Though they came out well, Yusuke could tell that they were fake. It didn't stop him from getting hard, but as far as he was concerned, natural breasts were better than fake ones. He noted each of their augmented sizes in his head: <D-cup, E-cup, E-cup, B-cup, H-cup, C-cup...> Several of these women were also ex-girlfriends of his.
 
At that moment, Yusuke's cell phone buzzed. He looked at it and saw that his friend Yoshio had texted him: COME TO THE CAFE, the message said. Yusuke looked up and saw that he was very close to the campus' cafe. His shower would have to wait; he yanked on the cable overhead and the bus glided to a stop and he got off. He walked down the sidewalk and through the crowd until he came to the cafe. He looked around, scanning the tables of students having lunch, drinking coffee, and talking. It took him a moment to spot Yoshio near the other end of the cafe. He was sitting at a table by a window next to a girl that Yusuke didn't recognize. Yusuke walked over at the two continued chatting, but then he saw Yoshio get an angry look on his face after the girl said something and he practically yelled something that Yusuke was still too far away to hear. As he approached, he finally heard the young woman say, "Keep your voice down, Yoshio; we're in public." Yoshio has a similar outfit to Yusuke's, except that his shirt was more of a reddish color and buttoned up nearer the top. The woman, on the other hand, was wearing a white button shirt, a sleeveless yellow sweater, and a short, navy blue skirt that echoed of high school days.
 
At that moment, Yoshio saw Yusuke out of the corner of his eye and quietly snarled, "I just don't understand you. Why *him?* What's wrong with *me?*"
 
"What's with the attitude?" Yusuke asked as he sat down. Yoshio scowled a bit and turned back to the girl, saying, "Well, here he is. Yusuke Mizuhara." Then, Yoshio stood up and said, "I'll see you later, and you too, Yusuke," and he walked off, muttering about how unfair he felt the situation was. Yusuke wasn't too worried; Yoshio got like this sometimes, he'd be back to his old self by nightfall.
 
Before Yusuke could turn back to the girl, a waitress walked up to take his order. Yusuke bought a small coffee and finally turn to the woman--apparently a shared friend of his and Yoshio's--who was looking rather glum. He thought, <Okay, no idea why Yoshio was so angry...> he looked her over, <but I'm sure it has something to do with this woman>--his eyes fell on her chest--<who has giant breasts!>
 
Indeed, she was *very* well-endowed; her boobs were nearly as big as Kazue's! However, while Kazue had gotten the implants offered on campus to achieve her new size, Yusuke saw--to his amazement--that this woman's breasts were 100% natural. He could see them move ever so slightly as she breathed.
 
The woman occasionally looked up at Yusuke, then away, averting her reddish-brown eyes; she must have been shy. Her skin was a lighter tone than Yusuke's, making her look almost Caucasian; coupled with her exotic-looking hair, the same color as her eyes, and her very large chest, Yusuke would be very surprised if she had never been mistaken for a foreigner.
 
Finally, the woman looked at Yusuke, apparently having finally mustered up the courage to talk, and introduced herself, "Um...I...I'm Reina Toyohara. It's nice to meet you." Her hair bounced a bit as she turned her head to look at him; it mostly stayed in a bob cut around her head, but none of it covered her face. Yusuke was thankful for that, because it would have made her less attractive if even a centimeter of her beautiful looks were covered up. Her nose was kind of small and her eyelashes were short. Yusuke guessed that she was about as tall as he was,
 
"Yeah, it's nice to meet you, too," Yusuke said.
 
"I need to ask you a favor, Yusuke. Yoshio told me that you're really smart, so I was wondering..." she faltered for a moment, "would you...tutor me, if you don't mind?" Reina asked. When Yusuke got a puzzled look on his face, she said, "Oh, please, Yusuke? My grades are failing and I don't want to have to take my classes again! It has to be you! Please, for me?" she pleaded, leaning forward and bowing her head. Yusuke 'happened' to glance down at her chest again, and saw that her breasts were now squeezed between her arms.
 
<They're F--no, wait, she's probably a G-cup! Maybe *double* G-cup!> Yusuke thought, never letting his expression betray his thoughts; he'd learned to do that long ago. Maybe it was a good thing that Kazue had dumped him.
 
"Does this mean you can't do it?" Reina asked. Yusuke realized how quiet he had been.
 
Yusuke took Reina's hands in his and said, "Listen, Reina. I should warn you that I'm in pretty advanced classes. If I *do* tutor you, my lessons will be pretty tough. Are you sure about this?"
 
"Yes! Yes, of course!" Reina said, her depressed look instantly being replaced by a smile, "I'm really looking forward to it!"
 
<Oh, man! Private lessons with a big-breasted girl!> Yusuke thought; he almost felt like giggling right there and then. "We'll do it, then."
 
"Oh, thank you, Yusuke! Thank you! Here, I live at..."
 
 
 
The next day, just as the sun began to set, Yusuke got off the bus closest to where Reina lived. As he got out, he saw that he was just outside an upper-class neighborhood. *That* explained why he hadn't seen much of Reina at campus: she didn't live in one of the on-site dorms, she was a local.
 
It was quite a way, but Yusuke climbed a hill to a house near the top. The house simply *screamed* financial well-being: the driveway was gated, the house had two floors, exotic plants grew in the yard--a *yard,* in a country as crowded as Japan and a region as heavily urbanized as Fukuoka!--and the architecture made Yusuke think that lower European nobility would live in it.
 
Though the driveway was gated, it was open right now, waiting for him. Yusuke walked up to the door, spotting an expensive-looking car as he did, and rang the doorbell. He took a deep breath and, fighting thoughts of his tutoring partner without that shirt and sweater on, said to himself over and over again, "I'm just here to tutor. Don't wanna go to fast."
 
Just after he rang the doorbell, he heard a voice call from inside, "I'll get it!" and the door opened. Yusuke's eyes bugged out a little when he saw Reina standing there, and more importantly what she was wearing. Reina herself looked the same as she had yesterday, but now she was wearing a loose, skimpy orange top that stayed on only by spaghetti straps, a yellow skirt even shorter than the one she was wearing before, and--best of all--no bra!
 
"Oh! Hey, Yusuke! Come on in!" Reina said with a smile. Her beasts moved even more now; the slightest movements made them jiggle like jello. Yusuke had to quickly move his book bag to hide his erection. "I'm so glad you came!" Reina said, then turned towards the inside of the house and called, "Mama! My teacher's here! Come and meet him!"
 
<Mama...?> Yusuke thought.
 
"Hi!" he heard a new voice say. When Yusuke finally turned his head from Reina to her mother, his eyes bugged out even more. Reina's mother walked into the room and stopped now far from them, leaning forward just a bit. As with Reina, his eyes immediately fell on her chest: she was even bigger than Reina!
 
<J-cups! Rocket torpedo titties!> he thought. Even if Yusuke was wrong, it wasn't by much; Reina's mother was easily four cup sizes bigger than her daughter.
 
"Welcome! I'm Mitsuki. Reina is my daughter, but you probably figured that out already," she said, almost playfully. Her hair was much longer than Reina's reaching down to her waist. Though they had the same eye color--which Reina had clearly inherited from Mitsuki--her hair was a tan brown color, and she had the same light skin tone. While most of her hair fell down behind her shoulders, there were two locks of it that went down her front and to the top of her breasts, and her bangs parted, going partway over her eyes. Yusuke felt he was mistaken the day before, thinking that Reina would look less pretty with some hair covering her face; if Mitsuki was any indicator, it would make her even *more* beautiful. The older woman was wearing a reddish-pink sleeveless turtleneck which, like Reina's top, didn't leave much to the imagination. She also wore a light tan dress, made from a single piece of cloth that reached down to just below her knees and terminated in a ruffled frill along the bottom. She was a bit taller than Yusuke, perhaps because of her age.
 
Keeping back his thoughts about her enormous breasts, Yusuke said, "H-hi. I'm Yusuke Mizuhara."
 
Mitsuki hid a smile behind one of her hands and said, "I'm sorry that my daughter was so insistent. She just didn't want anyone but you to tutor her, so..." and she giggled a bit. Yusuke guessed that she was at least thirty-five, but she looked so young! In fact, if he hadn't known better, he would have though she was no older than Reina! Maybe even younger!
 
"*Mom!* Shut up! You're embarrassing me!" Reina said, "Come on, Yusuke," she took him by the arm and led him upstairs. Just before they got to the top, Mitsuki called to them, "Oh, Reina, I'll be going out for a little bit! Don't do anything I wouldn't!" she said with a wink.
 
"Okay, Mom!" Reina called back as she led Yusuke to her bedroom. Yusuke looked around with envy; her room was so spacious. It put his meager apartment to shame. There was a desk, a couple of bookcases, a Western-style bed instead of a futon, # two chairs, and a closet, with room to spare.
 
Before anything else, all while resisting his urges, Yusuke pulled out the two chairs so that they were facing each other and they each sat down.
 
"So, Reina, tell me a little about yourself before we start," he said.
 
Reina smiled at his politeness and said, "Well, I've lived her in Fukuoka my whole life. I've wanted to be a prosecutor since high school, so I'm trying to transfer to another university that has advanced classes in that. But I...uh...need the math credits to transfer to the one that I'm interested in, over in America," Reina said, the cheery attitude in her voice shrinking into one that was a bit embarrassed as she went on. Yusuke got a look of sympathy on his face, until Reina said, "And I was hoping you could help me out with that."
 
Yusuke smiled back and said, "I'll do whatever I can to help you, Reina." The young woman giggled a little with excitement and slid her chair over to her desk. She got out her supplies, as did Yusuke. He handed her a worksheet he had printed out beforehand and began hovering behind her. "Okay, Reina. First, I want you to answer all the questions on this paper. It's pretty basic stuff, you shouldn't have much trouble with it," he said.
 
"Okay," Reina replied and immediately got to work on the problems before her.
 
Yusuke tried to keep his gaze away from Reina's cleavage, but his eyes were always drawn back to it. Wild thoughts of what he almost desperately wanted to do to her went through his mind, <Those are some unbelievable tits. How am I supposed to restrain myself with *those* in front of me?!>
 
"Yusuke? Yusuke!" Reina said, flapping the paper at him. Yusuke snapped back to reality and took the paper from her. He looked over at the paper and said, "Okay, here's the next page," and he took out another worksheet, handing it to her. As he continued scanning the lines of handwriting on the first page, Yusuke kept finding himself looking at Reina's chest. He could see right down her shirt from where he was standing, and the fact that her boobs were resting on the table only heightened their appeal.
 
Yusuke was having trouble keeping his thoughts straight. No matter what he did, his eyes kept going back to Reina's cleavage. Reina was tapping her pencil against the desk, trying to figure out the next problem. Finally, Yusuke got fed up with trying to resist and thought, <Oh, I can't take it anymore!>
 
Without warning, Yusuke dropped the paper and lunged, taking hold of Reina's breasts. They were so big that he could barely wrap his hands around them.
 
*"Oh!"* Reina said, surprised.
 
"Ooh, Reina, I've got you," Yusuke said teasingly.
 
"Yusuke, what are you doing?" Reina asked with a naive tone, but Yusuke saw that she was smiling instead of having a look of horror on her face, "Y-yusuke, no..." she said, blushing as he continued fondling her through her shirt.
 
"Oh, your boobs are *amazing,* Reina! They feel like marshmallows!"
 
"Yusuke, please! S-stop! You can't, i-it's too sudden!" Reina said between shudders and moans.
 
"Come on, Reina. You're wearing these skimpy clothes on purpose to turn me on, aren't you?" Yusuke said, "You *know* you were hoping this would happen."
 
"No, I didn't--*aah!*" Reina said with a yelp of pleasure. Yusuke stopped for a moment to pull up her shirt, fully exposing her breasts. Soft, pink areolas about five centimeters # in diameter tipped each one, and her nipples had grown hard from all the fondling.
 
"Oh, look at these boobs! They're *perfect!*" Yusuke said with awe in his voice and a grin on his face. He began massaging her breasts again, even faster and more passionately, as he closed in behind her to kiss and lick her neck and cheek.
 
"Yusuke! Yusuke...oh, God!" Reina said, her face turning redder than before as her panties began to grow wet.
 
"Well? It feels good, doesn't it?"
 
"Oh, Yusuke! My nipples...I want you to play with my nipples, too!" Reina said. Yusuke's grin got even wider and he chuckled a but, turning his attention to her teats.
 
"How does it feel?"
 
"Good! It's so good!" Reina moaned, "Right there! *Aah!* Yes! Yes! Oh, Yusuke, it feels incredible! My nipples are *really* sensitive!" she said, moaning louder.
 
"They've gotten so hard," Yusuke said, running his fingers across her breasts.
 
"It's because you're paying so much attention to them," Reina said. Yusuke stopped for a moment; he had an idea. Reina opened her eyes just in time to see Yusuke turn her chair around so that he was facing her. Yusuke ducked his head down and began licking one nipple, teasing the other, and massaging one of her breasts with his free hand.
 
"*Aah!* Oh, yes! *Yes!* Yusuke, please don't stop! It feels so good! Don't stop! *Don't stop!*" Reina said, her voice growing more and more frantic as pleasure overwhelmed her, "Yusuke! Yusuke!! *Yusuke!!!*" she cried out his name as she came, her fluids soaking her panties. Yusuke stopped fondling her as she caught her breath.
 
Once Reina calmed down a bit, her head tilted back as she continued catching her breath, she said, "Oh, God...that was amazing. I've never felt like that before." She looked up at Yusuke and said, "I can't believe how soon you started this."
 
Yusuke, who was sitting in the other chair opposite her, said, "So you *were* trying to seduce me."
 
"Yeah. Yoshio told me about how much you like big boobs. And..." Reina stopped for a moment, "well, I think I'm in love with you."
 
Yusuke was taken a bit aback. "Really?"
 
"Yes! I saw you at campus earlier this year and I haven't been able to stop thinking about you since!" Reina said. "I was gonna come on to you after a few lessons, but you beat me to it."
 
"So, you want to be my girlfriend?" Yusuke asked.
 
"Oh, *so* much more than that," Reina said, giving him a lustful look. Yusuke gave one right back to her.
 
"Well then, I guess it's my turn, now," Yusuke said, standing up walking over to Reina. He unzipped his pants, pulling down his underwear just enough to completely expose himself.
 
Reina gasped at the sight of the fully erect twenty-five centimeter # cock in front of her, "It's so big!" she said. She looked up and asked, "What do you want me to do?"
 
"I want you to give me a titty-fuck," Yusuke said.
 
"What's a titty-fuck?" Reina asked. At first, Yusuke thought she was joking, but when he expression didn't change, he said, "Like this," and took ahold of her breasts once more, squeezing his cock inbetween them. Reina gasped again, this time with pleasant surprise, "Yusuke, does it feel good?"
 
"Yeah," Yusuke said, moaning a bit. Reina watched him move her breasts for a short while, then he released them. Reina understood what he meant, now, and took them in her own hands. She moved her breasts up and down along Yusuke's dick like he had, asking, "Like this?"
 
"Yeah, just like that," Yusuke said, closing his eyes as he shuddered, "It feels *great.*"
 
"I feel strange, Yusuke. I love the feeling; it's so good," Reina said, speeding up.
 
"Reina!" Yusuke groaned, screwing his eyes a bit, "Reina, it's so good! I'm gonna come!" he warned her, and no sooner had he than he did. His semen shot out of his cock and landed on Reina's face and neck.
 
Reina gasped out, "Oh, Yusuke...that was incredible." She wiped some of his cum off with her fingers, "So much came out." She looked a little nervous, but after a moment threw caution to the wind and licked up his semen. "Mm...it tastes good."
 
"Reina..." Yusuke said with lust in his voice. He clasped a hand against her breast again and moved in, kissing her deeply. She returned the gesture, both of them moaning sensually. Yusuke straddled her lap, his dick still hard and pointing up towards her chest. After a few minutes of making out, Yusuke felt he was ready.
 
In spite of having had several girlfriends over the years, Yusuke had honestly never had sex, not yet at least. It was almost always his own fault, having driven past girlfriends away with his unwanted advances. This time, though, he knew that his partner wouldn't mind. Yusuke reached down with one hand and gripped the edge of Reina's skirt, getting ready to lift it up. He could practically feel himself getting harder with anticipation, and he reached under her skirt to pull down her panties. He couldn't see it yet, but soon he'd be able to feel her.
 
Suddenly, they heard the front door close.
 
"It's Mom!" Reina said, suddenly worried. She pushed Yusuke away and ran to the door, pulling her shirt down as she did, and looked outside. At the front door, she could see Mitsuki holding the door open with her hip while she carried groceries in with both arms. Reina ducked back into her room, grabbed some fresh panties out of her drawer--much to Yusuke's surprise--and ran down the hall to the bathroom. Yusuke was alone in her room for a few minutes, and then she returned, having washed off his cum and replaced her panties. She tossed the wet ones into her hamper and said, "So, what next? D'you have some more worksheets for me?"
 
"Uh, yeah," Yusuke said. He disappointedly put his dick back in his pants and zipped up again before taking out another sheet of problems.
 
 
 
"Mom! Yusuke's leaving!" Reina called to her mother after she led Yusuke to the door a couple of hours later. In spite of everything that had happened, she and Yusuke hadn't gone back to second base in the entire rest of the session.
 
"Bye. Thank you for having me over," Yusuke said with a respectful bow. He was almost out the door when Mitsuki stopped him, "Yusuke?"
 
Yusuke turned to look back, "Yes, ma'am?"
 
"Come back soon, and thanks for all your help. Make sure you take good care of my daughter," she finished, also bowing with respect. As she did, her breasts bounced and swayed a bit. Yusuke quickly made his leave to hide his erection; he wouldn't want to insult or embarrass his new lover, seeing him getting hard at the sight of her mother.
 
Once Yusuke was down their driveway and out of sight, Mitsuki said, "What a nice boy."
 
"That's why I wanted him to help," Reina said, lying.
 
"Do you think he's single?"
 
*"Mom!"*
 
 
 
Back at his apartment, Yusuke laid down on his future, staring at the ceiling as he looked back on what had happened today. This was the furthest he'd ever gotten in a physical relationship in his whole life. It was a leap and a bound as far as he was concerned.
 
He smiled, thinking, <She was amazing! So big, so soft...> The image of a bare-breasted Reina came to mind. He could just imagine her winking and blowing him a kiss as she lifted her tits for him.
 
Then, another image flashed across his mind, and he headed toward the bathroom with another thought in mind: <I bet Mitsuki's are really soft, too.>
 
 
 
Later that night, in the Toyohara home, Mitsuki opened the door to Reina's bedroom. The lights were off, and her daughter was already asleep, curled up under the covers and snoring lightly. Mitsuki smiled. She took the worksheets from Reina's desk to look them over. Sure enough, all the answers were right. Maybe Reina really *did* have a shot at becoming a prosecutor. She went back into the bedroom and picked up Reina's hamper, carrying it to the laundry room.
 
As she turned on the washing machine, she loaded their clothes into it. She pulled Reina's orange top out of the basket and couldn't help but ask herself, "Why *did* she wear this?" She had been wondering that all day. She shrugged it off and went back to the clothes, loading them in with her own. A few of her dresses, Reina's skirt, a few sets of socks, a pair of panties...
 
"Huh?" she said to herself. She picked up the panties again and looked at them more closely. <Are these mine?> she wondered to herself. Something about them seemed very much like they belonged to her, but something was wrong with that. She looked for the monogramming to be sure.
 
They were Reina's panties. Now, she knew exactly what seemed so familiar about them. In the Toyohara household, this was something that had only happened to *her* underwear. Now, this pair of Reina's was the same. Mitsuki looked in the direction of her daughter's room, and realization came to her.