I got worried, as I thought something was wrong and asked her what had happened. Those were the last words I said in complete consciousness.The lady (...y mom’s friend), who was sitting on my bed, got up and walked to the other side of the bed and closed the window. Without wasting a second, she stripped right out of her clothes.I was so shocked that I didn’t even notice that my mom had also stripped completely naked on my other side.When I was about to shout, the aunty placed her hand on my lips. Casey was pretty rich and had a very large room to herself, with a TV and her parents left her alone in there to do what she wanted. Casey was an honor student and the pride of the family so I knew they would not bother us until morning.Casey told me to get comfortable, which I did, we both undid our bras but left our shirts on, and we also pulled our pants off. I had black panties and Casey had red booty shorts on.“Can you believe this Mark said I am a lousy kisser?” Casey stated in a shocked. “I love your big tits,” I gasped.“Fucking my nephew,” she mumbled like she was talking t herself. “i****t, lovely, filthy i****t…”I grabbed at her body, thrilled by the texture of her skin as I held her hips and fucked up into her pussy. Then I held her waist while she writhed above me, corkscrewing her pussy over my cock, pubic bone grinding against me. When my aunt grunted and snorted, I held her breasts, squeezing their spongy firmness while I marvelled at their size and weight, the wonder. It was dripping off her hair and chin and she looked as if she had won a lottery.Eventually, our thirty-something bodies betrayed us, and within less than three hours, we were all finished. Even the girls looked exhausted, all covered with cum, oozing sperm out of all of their crevices; the entire house smelled of sex.“Listen guys, thanks for “cumming” to our little house party,” I finally managed “But I have to get the girls home and clean up and I know it's early, but if you wouldn't mind.