One idea stood out to Ty most of all- growing a second penis. Sure, it wasn't normal for humans, but given how much pleasure just one phallus gave him, having another was a really intriguing concept. He barely even noticed his mind fixating on the idea and his power granting the wish until it had begun.
He peered down and his breathing quickened as he noticed the skin just above his existing cock distending and protruding, soon forming a hole through which he could see, and feel, a newformed glans. It seeped precum and twinged with arousal. The young man gasped as it protruded, a shaft developing that gradually reached the length of his other penis.
Naturally, the phalluses rubbed against each other- and this just made Ty's hesitance melt. One hand seized each shaft and rapidly stroked at them. All kinds of messy fantasies shot through his head- fucking girls in their pussy and ass at the same time. Fucking two different girls at once with his two penises. Fucking a girl in the pussy and a guy in the ass at the same time. Fucking a girl and frotting a guy's cock at the same time.
He soon rubbed the two shafts against one another, inflaming his arousal as he stroked them both with the same hand. He bit his lip as the pleasure intensified, unable to stop himself as the pleasure continued mounting until it hit a crest. He groaned softly as he had the most intense orgasm of his life, both penises ejaculating messily all over his body.
After cumming he felt way more drained than normal, and realized he should probably wish to increase his sperm count to make up for how much more he could ejaculate. He wished for this, and practically felt his balls populating themselves with scores more swimmers. After cleaning himself up, he wondered what to do next...