Jon grinned and returned the wishing stone to his pocket. He was about to leave the janitor's closet when the door swung open in front of him and two figures quickly came into the dark room. Fortunately for Jon, his invisibility prevented the newcomers from spotting his presence. Jon instantly recognised the pair as none other than Bart (now Barbi) Stevens, accompanied by Steve "The Stud" Farber.
Jon sank back into the corner of the room as the newcomers moved in to occupy the rest of the small closet. Barbi giggled euphorically as The Stud kissed her neck and shoulders. She took his lips to hers and engaged him in a passionate kiss. They made out at a furious pace as The Stud tugged at the top of Barbi's leather dress, exposing her engorged nipples before finally unleashing her massive, round breasts. As her tits bounced freely, Barbi hiked up the short skirt of her dress and pulled down her soaking wet panties with one hand. With her other, she fondled the raging hard-on in The Stud's trousers.
Jon watched the action in complete silence. He mused about just how quickly Barbi had succumb to her new urges since her transformation (though at the time he was unaware that this was in fact her third lay of the day), and what an excellent slut she was going to be from now on. Now that Farber, on the other hand, he was already a slut. A linebacker on the football team and the school's biggest playboy, there wasn't a single attractive girl in town he didn't have in his little black book... or in his bed.
As certain as he was that the lovers were unaware of his presence, Jon couldn't move past them to exit the closet while they were there. He had places to be and as much as The Stud's prolific rutting habits usually bugged him, they were especially annoying right now.
Steve hastily unfastened his pants and let his erection breathe for an instant before thrusting it into Barbi's eager pussy. She moaned happily as his member slid into her. The Stud lifted Barbi up and pinned her against the wall. Her breasts jiggled wildly so Steve squashed them together between his hands and tended to her nipples with his tongue.
Jon sighed. The show was hardly boring, but he didn't like being detained like this, and he certainly didn't like the feeling of being trapped in. The Stud brought Barbi in here, he should pay. Hell, that asshole was somewhere on his list anyway. As Barbi pulled Steve's football jersey off over his head and begins to kiss his muscular chest, Jon secretly brandishes the wishing rock in his hand.
"I wish," Jon began, "that while I'm invisible nobody except myself can hear any wishes I make, including this one."
Okay, he thought, now for the fun...