I'm involved in a serious relationship (several years and counting now). My girlfriend, however, is the extremely jealous type. If I even semi-accidentally-glance in the direction of another girl at say a restaurant, the rest of the evening is ruined as she gets pissed off and tells me not to look at other girls. Also, we're sexually active, and only with each other. But I've always had an insanely strong fantasy to go to a gangbang or have sex with multiple people at once. It's to the point now where, because I can't satisfy that fantasy, I find myself enjoying masturbating to videos of such scenarios more than having actual sex with my girlfriend. It's nothing against her, I love her very much, I'd even want her to come with me and have her get banged by other guys, I'm fine with it. It's something about a group of people who don't even know each other all making each other feel physically good that fuels my fantasy. But because of her personality type, I'm 99% sure that even *mentioning* something as small as a threesome would probably cause the relationship to end. So I've been doing a lot of soul searching on this one. I keep struggling with thoughts of like, "you only live once, should do as much with life as you want to," including live out fantasies, but at the same time, I can see myself marrying this girl, so I'm not at all ready to throw the relationship away; I love her very much, it's just sexually we're on two different levels. Anyone else ever been in a similar situation?