I had a foursome with my bestfriend and his 2 sisters - AMA
Me (20f) and my bestfriend (23M) were having sex when his sisters just walked into the room and wanted to join us. Me and them already sexted and had lesbian sex, also told them a lot about their brother, about how good he is in bed and they used to get wet. I also used to tell him about them and he got hard so it was bound to happen that they join in. They joined in, we had a nice foursome with him taking turns with all of us and cumming multiple times as the show went on for hours!