Last night I had a cool experience. I was sleeping over at my gf's apartment when all of a sudden, around 12 at night I started hearing the couple on the next floor having sex (The apartments are very poorly insulated). It was really hot hearing them have sex, especially since they were being rough. I could hearing the bed banging against the wall rhythmically at a fast pace and the girl was really into it.... ive never heard a girl moan so much during sex... I immediately woke up my girlfriend and we were listening to them and I got so horny that I started playing with myself... once my girlfriend noticed what i was doing she started licking my mouth and frenching me very passionately and then she started playing with my balls and licking my nipples while i was jerking off.... I was so horny at that point that I almost went upstairs to ask them whether me and my girlfriend could join them... then I heard the guy grunt real loud and everything leveled off after that... for them.... Me and my girlfriend on the other hand where still going at it. I mounted her and started penetrating her and started moving my hip into her in a circular motion.... I was touching her ass, her thighs... her tits... and her feet while I was fucking her.... it got rougher and rougher and faster and faster until I pulled out and came over her tummy.... It was fucking hot. Anyone else have a similar experience worth sharing?