I could feel another orgasm building as she squeezed and clenched that amazing pussy on my raging hardon.
“Oh, fuck; I’m gonna cum, sis!” I announced loudly. “You’re gonna make me cum!”
Worried again about cumming inside my sister, I pulled out and sprayed a second load on her ass and back. When I was done, I re-inserted my semi-rigid cock back into her warm cunt, and we rolled back into a spooning position. We lay there until we each caught our breath. Neither of us spoke, and neither of us moved. Our bodies felt amazing together, and her pussy clenched around my slowly softening penis.
Marie finally rose and went to the bathroom, and I did the same (sneaking into the hallway bathroom undetected by any of the drunk and passed-out guests). When I returned to her room, Marie was back in bed, dressed in an oversized men’s t-shirt. I found my boxers and put them back on before climbing in next to her. Still not sure what to say or do, I moved over to her side of the bed. Marie rolled to me, clasped her hands at my face and gave me a long kiss.
“Good night, little brother” she whispered and rolled over. I kissed her shoulder and rolled over to the other side of the bed.
“Yes,” I thought to myself, “that was one VERY good night.”
Added by bitwicethefun