When I was younger I was dating a guy who was my age, that had a 28 or 29 year old brother, who was basically just a slightly more rugged looking version of my boyfriend. My boyfriend lived with his mom cos we were still in high school but his brother lived in an apartment a few towns away. So one day my boyfriend and I are alone at his house because his mom was out for whatever reason, so we’re taking advantage to fuck somewhat loudly on his bed. He made me cum twice, fucking me missionary before cumming himself. I could have still kept going but I was happy that he was happy and didn’t mind it was over in only 20 minutes.
He rolled off of me to reveal his brother standing in the doorway, watching us with a smirk on his face. He walked over and I was too shocked I didn’t even attempt to cover myself. He looked at my boyfriend, shook his head, and said “come on man, a bitch like that still has so much fuck in her yet, if you don’t get your cock in her now I will.” My boyfriend told him I’d cum twice already and I was fine, so his brother walked right up to me and touched my pussy, and I shook under his fingers.