Face Facts

 "Please Jimmy we have to stop" Grant insisted hating the petulant whine that crept into his voice as he spoke, "I'm your father for God's sake!"

"Oh really?" The younger man asked with a wicked grin "You don't much look like it from where I'm standing."

Grant felt his son's fingers tangle in the raven tresses of his hair. Pulling his head back until he was facing his own beautiful reflection in the mirror. 

"My father was in his fifties. Mostly bald, about twenty pounds past heavy set and more importantly a man. Tell me, do you see anyone here that matches that description?"

Grant shook his head trying to deny it even as the girl in the mirror copied his every motion. 

"Jimmy, son, try to understand,"  Grant begged once more "all this is only temporary. Once I get the parts for my machine..."

His pleas dissolved into whimpering moans as Jimmy's thrusting cock found the entrance of his cunt. 

"Don't give me that" Jimmy said with a mocking laugh "You and I both know you fixed the transmogrifier weeks ago. I don't think the reason you're still mincing around in my ex-girlfriend's body has anything to do with the machine needing new parts from China. But I suppose I could be wrong, there could be a perfectly innocent reason why you're still a girl, or why you're dressing like a hooker when you remember to get dressed at all. Or why you snuck in on me while I was in the shower. Honestly, I'd love to hear it. Or you could admit that this is what you were after all along and we can all stop pretending it's anything else."

Grant desperately wanted to deny it all to resist the unnatural lust that had possessed him since his experiment landed him in Gina's body. Instead, she felt the last of her resistance crumble away as she pushed slowly back until her boyfriend's wonderful cock finally filled her.