My girlfriends sister (named Charlotte, 18F) is very close with my girlfriend (named Ella, 19F) and both are really hot with amazing figures. I’ll give a small description of each girl for reference. Charlotte was about 5ft4 brunette hair, quite slim with really toned legs, massive bum and quite nice lips. My girlfriend Ella was older but abit shorter around 5ft1 brunette hair, massive bum too with big brown eyes and always dressed a little slutty.
As soon as Charlotte turned 18, me and Ella took her out clubbing for the first time where we all got very drunk and danced with eachother on the dance floor. On the dance floor is was quite dark and whilst we were dancing I felt Charlotte grind her bum onto my penis on the dance floor, I was already hard from watching them dance slutty in their tight dresses, and she must’ve felt my boner with her arse coz she stopped for a second and then pushed harder into it.