Aaron's wife found a magic spellbook, and she kept using it to transform each of them into the opposite gender. It was a simple charm and for whatever reason only she could cast it. She'd mutter it under her breath and POOF, she'd become a tall handsome man and Aaron would become a hot girl.
Aaron would protest, "Not again!" or "Honey you've really got to stop doing this." or "But I didn't want to have tits today!" and his wife would just shrug and say she just wanted to have some fun.
Aaron knew just what kind of "fun" his wife meant and was, honestly, always down for it. Eager fr it, even. His wife would pull out her new cock and Aaron would swoon, craving it.
He'd fondle it and play with it, amazed at how large it felt in his hands. Then he'd drop to his knees - he always dropped to his knees - and would do something he never in a million years he thought he'd enjoy. He'd suck his wife's cock.
Velvety smooth and hard, he'd come to love the musky taste. It turned him on to do it, to taste it, to hear his wife grunt and groan.
Inevitably his wife would demand more and Aaron was more than ready.
Getting his pussy fucked while his wife played with his tits felt good. So SO good. He'd moan and gasp and twitch and spasm as the pleasure overwhelmed him and he lost all control. "Fuck me harder!" He'd groan, and his wife would comply.
They'd fuck all around the house. Different places, different positions. Aaron would cum, and then cum again. Why did it have to feel so good, being a woman?
Inevitably his wife would reach her limit. Usually this meant pushing Aaron back down to his knees and firing globs of hot, sticky jizz all over Aaron's feminine curves.
Aaron would smile - or struggle not to - it was so embarassingly satisfying to wear the proof of how awesome he was in the sack.
Inevitably his wife would eventually repeat the charm and turn them both back to normal. Aaron always pretended to be happy when she did, but deep down inside, it was getting harder and harder for Aaron to deny he was enjoyed being a chick far more... He knew someday he'd break down and someday ask her to make the change permanent.
Inevitably, his wife would say yes.