As an A+ student, 17 year old Angus Firth spent most of his time in the local library studying and trying to do his best at school. As expected, this meant he wasn’t exactly popular, especially with girls. In particular a cheerleader called Mary, who proudly had the biggest bust in the school, bullied and made fun of him mercilessly to make his life a living hell: his only solace was the library where a popular girl like her would never be caught dead. Or at least, that’s what he thought until one particularly quiet night when a Math assignment he was busy working on was interrupted when he saw her enter the study room he was in.

Shocked and afraid, he immediately started to prepare for the worst when he saw that she was unbuttoning her shirt, their eyes locked on each other. When done she flashed her braless chest, her enormous pale breasts and thick pink nipples on full display just a foot away from his face. Feeling something harden in his pants, Angus assumed it must have been some sort of prank before she approached him, pressing her topless body against his and shushing him. Then she slowly lowered herself to her knees, fumbling with Angus’ belt as she fished his modest cock from his underwear. Holding it in her manicured hands she took it into her mouth, bobbing her head up and down as she gave her arch nemesis his first sloppy blowjob. The nerdy student was in heavenly sexual bliss for a few minutes until he finally felt a warmth in his body as he prepared to cum.

Instead, he felt a knot in his stomach as he blacked out momentarily, feeling something lodged in his throat choking him. Opening his eyes he saw a long fringe of light brown hair obscuring his vision, which he swept aside to see that he was kneeling in front of... himself? Panning down he saw a man's crotch pressed into his face and a familiar pair of round, busty tits hanging off of his chest. Realizing that they had somehow swapped bodies he panicked, trying to remove the dick from between his lips, but it was too late, a familiar throbbing in his jaws as a load of sticky, salty semen filled his mouth.

When he finally managed to remove the obstruction from his mouth his old body laughed, monologuing to a confused Angus that they always thought it was funny when they swapped right before the money shot. In a whisper they explained that they were a body hopper and assassin, who needed a new body to get the heat off of him. Angus tried to protest but his mouth was still full, spitting the ejaculate onto the floor and trying to beg for his old body back, but by then they had already left.

Angus slowly learned how to adjust to his new life as a busty cheerleader, and even though he was still just as nerdy as before, nobody seemed to make fun of him for it anymore. Boys were inviting him on study dates a dozen times a day now and even the teachers were nicer behaved. On the other hand, his large chest was always getting in the way, and he felt smothered by the constant attention... but he had to admit, at least it was better than before.