We used to be a close-knit group, but then we ended up in a triple swap?! Your girlfriend and I had sex, and my girlfriend got stolen by him, while his girlfriend did it with you! From way back, our tight-knit group would often get together and have a blast. But among us was one slut who, when drunk, started having sex with another guy and just couldn't stop!! In the end, everyone ended up having sex with different partners, and then, completely wasted, we all ended up in a massive triple swap orgy!!
