I fucked a girl who looks like a model, happens to be my friend’s sister 22[M] 21[F]

She’s very sexy and I’ve flirted with her but never done something beyond subtle flirting. Once, we all vacationed at at a cottage. One night, while he was sleeping upstairs with his girlfriend, I and her were talking on the couch, things got heated and intense and led us to a bedroom in the basement. Long story short, passionate sex with some recording :). Detailed story soon!