I turned to see it was my sister Carmen. My dick swung free and I could feel every bit of my nudity being revealed to my sister. She looked down at my cock and back up at my face. She smiled.

"It's not what it looks like. I went to the bathroom half asleep. I couldn't even remember which room I was staying in." I said looking for an excuse for my actions.

"Un huh." Carmen said letting her eyes travel up and down my exposed body.

"It's the truth." I gulped.

"I'm going to go in and say hi to Mom, I hope you don't mind." Carmen said as...