Saw My Bf’s Son And Mom

It was a party, New Year. I was a bit drunk. My bf’s mom was great, she was putting together a cheese tray for me. I stumbled in to the kitchen, but it was empty. I heard noises coming from the guest room, the door almost closed. I couldn’t help it and I peeked. My bf’s mom was on all fours on the bed, and his son was standing against it, pumping in to her. Her tits were swinging, almost touching the bed. She had big brown areola, and really long nipples. I watched for a minute, then took over serving. She didn’t clean up after and I could smell them. You could tell he put it in her butt.