Sharing a dick with my boyfriend

My boyfriend used to be jealous, a lot. But one day, a sunny day at the beach with few clothing and some drinks, we met a nice couple, both tanned and pretty. At sunset, after some chatting over caipirinhas, they invited us over to their apartment and then it was just a matter of time before my wildest dreams came true. I can say I enjoyed every minute of that late afternoon, but I'll never forget the scene of my jealous boyfriend and I sharing and sucking a hard dick til we made it cum, together. Until now I masturbate a lot thinking about that, and how that day changed our relationship forever.