"Big brother... Good morning!" The morning after I got home from a drunken rape, my sister was naked next to me...!? "...Big brother's sex is intense... Shall we do it again?" I didn't remember at all, but she said, "It was my first time to be creampied, you know?" I denied it desperately, but it seems that I was drunk and ended up cumming inside my sister. My sister, who always looks down on me, suddenly asked me to cum inside her again and again... I fucked her until my cohabiting girlfriend came home, and the cumming life of a brother and sister who have such good physical compatibility.