I thought my girlfriend's sister Karin was a quiet girl, but she was actually a horny one ...... "Touching me with your hand isn't cheating," I thought to myself, and somehow I believed it. But even though she was sleeping next to me, I was still mesmerized by Karin's beauty masturbation ...... Her devilish expression and technique made me come over and over again as I fucked my girlfriend's sister until my balls were completely empty ......