UMD-763 What!? My friend's girlfriend crawled into my futon?! "Come on, let's do it? It won't be found out if we do it in the futon◆" 3

A friend brought his girlfriend to hang out. The three of us were having a great time drinking at home, and before we knew it, the last train had left, so we ended up staying over. Soon enough, her boyfriend fell asleep, but his snoring was too loud for her to sleep, so she got into my futon. I couldn't resist messing with her boobs, which I'd been curious about for a while. She caught me, but said, "Want to touch? Sure◆" "But don't make any noise, okay? He'll wake up." What the hell?! Is this a dream or an illusion?! She even rubbed my dick over her clothes, making me fully hard!!! "He's already asleep. We won't get caught if we stay in the futon◆" We even had sex!! The guilt of sleeping with a friend's girlfriend is unbearable!!