Ben could never quite pin point the moment he understood his talent properly, though he was fairly sure that the source of it was an experimental treatment in high school whilst he was battling a rare blood disorder. The treatment seemed to have been a complete success, with the condition not recurring and the frequency of his check ups being less and less as the doctors eventually declared him to have beaten the disease.
It was over the course of the numerous check ups that his talent had begun to manifest itself. He routinely saw Sally, a pretty red haired nurse with a freckled smile and a nice figure. It was on the fourth of his then weekly visits that the accident occurred, Sally spilling some coffee onto her blouse and quickly disappearing behind a screen, returning in a slightly too large nurse's scrub top. She seemed flustered and that might have been why she was unaware of the gap at the neckline which allowed Ben a very pleasant view of Sally's nice breasts, encased in a plain white bra. He wondered to himself what she might look like with a larger chest, his views on women's desirability influenced by the availability of online porn, where it seemed every woman had enormous breasts.
He allowed himself to indulge the fantasy for a few moments while Sally diligently drew his blood sample, and assured him he was all better. At that moment, he was doing his best to hide a sudden erection, prompted no doubt by the unexpected pleasure of a peek at Sally's body. He recovered enough to escape without being seen, though the erection persisted for a full 15 minutes, until he got to his bedroom and could properly relieve himself. Often he would watch porn, but that day he had all the inspiration he needed, spurting copious globs of cum into the waiting tissues.
He didn't connect the events until he was back around four weeks later, for yet another blood test. Sally seemed to be wearing the same blouse but this time had popped a couple of buttons at the top, as well as the rest of the blouse seemingly straining to contain her bust. She was definitely sporting a nice cleavage on that day, and Ben got an eyeful when she popped out to the reception desk and leaned over to pick up some papers while the woman at the desk was on the phone. The view down her top was seared into his memory, providing plenty of masturbation material, so he seemed sure that her tits definitely looked bigger. Ben would have attributed that to some lingerie, but overheard a conversation with the receptionist who was asking if maybe she was pregnant. Sally assured her that she had tested herself several times, but her boobs had definitely grown bigger, by more than a cup size. Ben was summoned for his blood test, and this time the view of Sally's now impressive cleavage was the trigger for another strong erection, which he masked by holding his jacket over his lap. A few minutes and the blood was drawn and he left, and again the erection persisted until he could relieve himself at home.
Ben was not certain of the link between his desires and Sally's burgeoning bosom, so decided that he should test it out further. The trick seemed to be imagining the larger bust whilst being aroused, as in both instances the two things together resulted in bigger boobs. By his next visit, 6 weeks after his original vision, Sally was undoubtedly sporting a D or DD cup, when she had been no more than a neat B cup previously. Whilst initially worried about the sudden change in her body, once the size seemed to settle, she started to enjoy the extra attention her bigger boobs were drawing, the only drawback was a need to replace all of her bras and look for bigger tops, but all things considered she was happy if confused about the situation.
Ben next decided to focus on a couple of his senior classmates. He was quite friendly with his lab partner in chemistry, Angela who was a tall athletically built brunette. She was considered by the jock elite at the school as a nerd, but Ben knew she was like most young women in their last year at high school, thinking about college and interested in boys. He knew she had a crush on Mike, one of his friends, but was sworn to secrecy when he found out. Mike liked Angela but had frequently made disparaging remarks about her tiny tits, hankering instead after one of the senior cheerleaders with bright blue eyes and rather large boobs, which to be fair Ben had also noticed on more than one self pleasuring session.
So during their next chemistry class, Ben paid attention to Angela in a way he had not done before. He noticed her toned long legs, which today were on show with an above the knee skirt, and her sparkling blue eyes and warm smile. He managed a decent joke during lab practice which got a laugh and an enticing glance, which accompanied with Ben imagining her figure topped by a larger pair of boobs, soon had him stiff and trying to hide his erection under the desk. Convinced he had duplicated the process with Sally, he tried to focus on the class and stay on top of his good grades in the subject.
Ben's next test subject was Allison, one of his classmates in drama. She was someone that Ben had asked to a school dance earlier that year, and she had accepted and they'd had a good time. He suspected that she was showing some sympathy as he was recovering from his condition, but putting that aside, they'd had a nice time, though she'd spent a lot of the night tugging at her dress, opining at one point that she really didn't have the figure to wear it, but had fallen in love with it when she saw it. Thus Ben was pretty sure that she would enjoy a fuller bust, and while they were rehearsing a scene, with Ben stood behind her, his process of imagining a bigger set of boobs accompanied by a state of arousal happened, though Allison at one point had pressed back against him, joking that someone's blood disorder seemed to be much better as her bum pressed against Ben's firm erection. Unsure whether to be embarrassed or excited at this development, Ben quickly changed the subject and it seemed to be forgotten.
In both cases, Ben followed the moment in person with intense masturbation, while he noticed the volume and intensity of his ejaculation seemed greater than before. He continued to masturbate about Sally's impressive boobs, though avoided as best he could getting aroused in person as he didn't want the growth to continue to grotesque sizes. Sally was wearing tighter fitting tops and her nipples often seemed hard and pressed against the material, but she did seem happy and when Ben's blood tests became less frequent, he missed seeing the now busty redhead as often.
It wasn't until 4 weeks later that Ben knew for sure that his talent really worked. In the colder months the girls often wore loose fitting sweaters, but as spring finally took hold the woollen garments were discarded and tee shirts and blouses became the norm again. In Chemistry class he was sat as usual beside Angela, but his eyes nearly popped out of his head when she walked in to the room, a tight fitting tee shirt giving away the growth in her bust. It attracted a couple of comments, which seemed to make her blush, but she smiled. He asked her if she was okay.
"Well yeah I'm fine. Actually really good since these finally decided to appear."
She subtly gestured to her chest and smiled whilst still a little embarrassed.
"I would say that I hadn't noticed but that would be lying. But you've always looked great Angela, super pretty and all."
"Thanks Ben. I've been a little self conscious especially since most of the girls started to get bigger up top. You don't know the bullying that goes on in the locker room when I get changed for gym. I've wanted my boobs to grow for a long time now, and finally they're here. I feel great."
The teacher arrived to start class, so the discussion about Angela's new attractions was cut short, however she smiled at him a lot and there was a warmth to their interactions that wasn't there before. As class ended, she grabbed his hand as he made to leave.
"You've always treated me really nice Ben, and never ever made fun of me. Don't think I haven't noticed, and I'm really glad you're my friend."
Normally Ben would have blushed and sputtered some response, but today he was feeling confident and decided to try his luck.
"Is that you officially friend zoning me Angela?"
He smiled, raising one eyebrow quizzically.
"I wouldn't say that Ben, but you know a girl likes to be asked out if you want a move out of the zone."
They both laughed, but Ben quickly made arrangements for them to go to the movies at the weekend.
He floated down the corridors between classes after that, suddenly realising that Angela was not only smart, she was pretty and looked rather hot with her new curves, and would doubtless start to gain attention from the jocks. He didn't come down from the buzz of getting a date until he arrived at drama class. Allison walked in, wearing a large baggy jacket. She walked over beside Ben, took it off and theatrically put her hands on her hips, all but thrusting her bosom into Ben's face.
"What do you think, big boy?"
Ben stuttered for a second, unused to such direct attention from a girl, but quickly regained his composure.
"I think you might finally have the figure for that dress! You seem real happy about it too."
She nodded and squatted down beside him, whispering conspiratorially.
"Good call, I might just try that on, see how it looks. Maybe I should get your opinion though, you spent most of the dance trying to look down my dress. Yes, I'm very happy to finally get some woman sized boobs and have a figure that makes me feel sexy. Do you think I'm sexy Ben? You certainly seemed to think so the other week in class."
Before he could properly reply, class started and the moment was gone. As class ended, and it was the final period of the day, Ben headed out towards his car, an old Buick bought by his parents in part to help him get too and from school when he was unwell, but also as a tiny celebration that he had overcome his sickness. He was about to get into the car, when his arm was grabbed.
