Im a uni student with a girlfriend. My girlfriend lives in a house with 2 female housemates, they all went out one night. I was so fucking horny and wanted to do something different then just jerking off on my own, i wanted to feel a thrill. That night whilst everyone was out i went into my girlfriends bestfriend room, i lay on her bed and started stroking. I wasnt satisfied. I needed to be more of a perv. I went straight to her panty drawer and picked up like 5 pairs and instantly piled them on my face and started stroking my hard throbbing cock. The smell of ass and pussy was amazing. I wasnt done there. I started rubbing the panties on my cock the friction between skin and the material felt so good. I stroked my cock for a further 5 minutes before blowing the biggest, most intense load everywhere. It went all over her panties and some on her bed. I panicked i didnt know what to do. I left the room and didnt clean a thing. Hoping to assume she woke up the next morning with a blurry vision of she maybe spilt something everywhere when she was drunk, little does she know, its her bestfriends boyfriends cum.