“I don’t know about this…” Lisa said skeptically, eying her brother with suspicion. “I don’t think muscle actually work that way.”
“Oh, they totally do!” he insisted, giving her his most charming smile. “I’m the one who went to school for personal training, wasn’t I?”
“Well, yes, but are you sure?” She raised an eyebrow. “This is a pretty huge thing you’re asking.”
“Absolutely sure,” he said sincerely. “C’mon, Lisa, nobody will hire me if I’m not ripped! That’s the point of a personal trainer!”
“You’re right. Who ever heard of a fat personal trainer?” They both laughed.
He grabbed her hands and looked into her eyes in a way he hoped she thought was desperate. “So will you help me?”
Lisa grinned, shrugged her shoulder. “Okay, why not! Just don’t get me pregnant!”
With a smirk, he lead her into his bedroom. He knew as soon as she had his cock, he would be able to fuck his sexy sister, anytime, anyplace.