I walked in on my roommate getting railed and ended up involved

so I was supposed to be out the whole night but plans changed and I ended up back at the apartment around midnight. before I even got the door fully open I could hear her, like actually hear her, moaning loud through the wall, so I came in as quietly as I could.

they were on the couch. her boyfriend had her legs pulled all the way up to his chest, holding them there, and was just absolutely railing her. the way they were positioned he was facing the door so he clocked me the second I walked in, but she had no idea I was there.

the moment he saw me he started going harder. like immediately, visibly harder, slamming into her while keeping full eye contact with me lmaooo. he made a little gesture with his hand that she was drunk, so I stepped closer instead of leaving like a normal person.

she had this tiny pink tank top on and it was basically see-through from sweat, like I could see everything, every bounce, her nipples completely hard, the whole thing. he lifted her up and started fucking her so hard she was actually screaming, and I spotted her little red thong on the floor next to the couch. I picked it up and handed it to him. it was soaking, absolutely drenched and covered in her, and she moaned when he pushed it into her mouth and kept her eyes squeezed shut.

he leaned her legs back over the top of the couch toward me and motioned for me to hold them. and I did. I just grabbed her legs and held them while he used both hands to push her top up, and I genuinely expected her to feel the extra hands and freak out but she just had her eyes completely rolled back taking his cock like she was somewhere else entirely lol.

I ran my hands up and down her legs and then without really thinking about it I spread her wet lips apart for him and that was apparently the end of his self control because he groaned and pulled out immediately.

he got up over her face and started stroking and I leaned in and opened my mouth and he shot most of it straight in, and then the rest just... ran down from the tip of his cock onto her face. like a slow drip. there was so much of it. she was moaning and squirming the whole time with her eyes still closed, just completely into it.

she didn't open her eyes at all but when he pulled her thong out of her mouth she sucked him clean without hesitating. he carried her to bed and then left, and I was left standing in the living room alone at midnight completely soaked and vibrating.

I grabbed my toy, laid down on the towel they'd put on the couch (lol), put her little red thong on, and fucked myself until I literally could not move. I came so hard I had to just lie there for a while staring at the ceiling.

the next morning she came out and asked when I'd gotten home and I said like 3 or 4, and she just went "phew bc last night was INSANE here" and made herself a coffee.

I said "sounds like it" and poured mine and did not say another single word about it