...one where he was a guy. He'd wondered a lot about what it felt like since he was already a guy and how it would differ from when he felt horny or touched himself, plus he wasn't sure he felt ready for full-on sex, so that seemed like a nice place to start.
As he clicked it, he seemed to shoot through a white void towards the fantasy, and as he flew, he saw his clothes melt away and his body change to that of another version of himself. His proportions shifted around as if he were being moulded from clay by invisible hands, his chest expanded out into large pectorals which felt unfamiliar and intensely firm while a nice set of abs formed on him. Meanwhile his whole body grew over six foot as muscles formed and thickened his arms and legs while a layer of hair formed all over his body covering his legs and arms and the majority of his body, and his penis and testicles expanded from his body and formed into a well hung length and larger harrier balls.
Everything went a bright, blinding white for a moment, and then the fantasy appeared. Something immediately clicked- everything felt different. Andrew looked down at his body, and for a second didn't even register that he had changed. He peered past the large firm hairy pecs he now had, and saw only a large erection from his crotch where his larger cock and balls were now. He felt a tiny bit of precum at its top, and curiously reached down to rub it, only to yelp in surprise at how sensitive it made his larger penis feel. This was his new dick, he realised, and as he more carefully reached further down, he found his new set of balls dangling between his legs and was shocked how heavy they felt as he grasped them in his larger hands.
Then Andrew began to sit down, realizing he had been standing, and as he cushioned himself on his defined bubble butt he began to use his palm to caress his larger dick as it simulated his penis. Eventually Andrew used his hand to masturbate as a familiar sensation entered throughout his body, one he knew full well from his own private sessions of masturbation except they felt more extreme probably due to the high amount of testosterone his body made.
As Andrew grunted and moaned from the pleasure his left hand moved slowly down to his ass as it began to prod his hole. Andrew hardly acknowledged it at first as he was only focusing on his current jerk session but soon yelped as a finger entered him. The thick digit filled him nicely as Andrew squirmed from the new sensation. He wasn’t sure what was happening since he was straight and had only had experience in jerking off his cock but it seemed he had no say in the matter as his body fingered himself.
Andrew moaned more as his finger repeated exited and inserted itself inside his ass as he continued to jerk off. Suddenly Andrew yelped as another finger found itself inside and Andrew could only receive as he continued to jerk himself off. The whole new experience was getting to Andrew as he laid down on his back and felt his pecs jiggle from his thrusts and movements. Andrew then felt a familiar feeling as his cock erupted with loads of cum that landed over his muscular frame and even on to his face.
Once the high subsided his eyes stayed shut as everything went white and he shot back to the void he had started in