After a family wedding my girlfriend and I went to the hot tub at the hotel we were staying at. It was about to close but the guy let us in anyway. we were sitting in it relaxing, then she came and sat on my lap and we started kissing innocently. We looked up and saw a curtain quickly close, and it was my brother and sister spying on us. After some more kissing my had slowly moved down and I stated rubbing her pussy through her bikini. she then undid my swim trunks and pushed aside her bikini and we started slowly fucking. She had a hard time being quiet so we took a break, ran upstairs into our room, and had wild crazy sex.