"Oh, yeessss!" Rob hissed as he bent back to present his sister's chest to his former body.Avery gripped her brother's dick in her hand and aimed at her former tits. Each splash of cum seered Rob's flesh with pleasure. He ached with desire as the hot seed slowly dripped down his tits. As his sister slowed, Rob realized it wasn't enough. Even when he rubbed the warm seed across his body, spreading it over his bouncy little tits and down his stomach, he still felt naked.The Stranger had come upon the two siblings when they were at home after school. With a wave of his hand he'd swapped their bodies, and Rob suddenly found himself in his sister's petite form looking up at his old body, which towered over him.The Stranger turned to Rob, a gleam in his eye. "You won't be satisfied until you're covered in cum."Suddenly Rob felt completely naked and vulnerable, even though he was dressed. He desperately needed to be coated in seed and he turned to his sister, scrabbling for her pants. She didn't need to be told twice, because the Stranger's magic had affected her as well. She wanted to see her former tiny body coated.When Avery had finished Rob stood and headed for the door, need compelling him to seek out other guys until he was a dripping mess of cum, while the corresponding magic made any guy he came across desperate to comply. He was out a long time. Only after several hundred guys was he finally satisfied, his entire body a dripping mess, his hair tangled and tacky, his skin sticky. But at least that desperate need was gone. Now he had to face life in his sister's body after everything he'd just done.

A man out for revenge swaps bodies with his ex-girlfriend and takes over her life in It's a Steal, available on Body Swap Stories, Smashwords, Amazon, or wherever ebooks are sold. Preview here.
https://bodyswapfiction.com/enter/?p=11842