"What a sight that must have been. "I'm sorry I missed it," I said as I ran my hand over Karina's round ass.

As I pinched her buttocks, she squealed. "We could recreate the scene for you."

And with that, they fell into each other's arms and onto my bed. Tongues connected, hands roaming all over the other's body. Carly broke the kiss to look over at me.

"So what do you think, big brother. Want to watch your girlfriend and your sister fuck?" Carly was already fingering Karina gently.

"Oh my god, yes," Karina moaned. I nodded silently at Carly. She pulled Karina onto her back and took both...