Starts with.....I was drunk and a little bared out on saturday and went to a little party at a friend's house with my girlfriend and friends. The party got a little rowdy and I told my girlfriend to kiss this other girl that wanted to kiss her. She refused at the time, but little did I know it would come to haunt me. I don't know why I asked her, maybe for a test? I do know I hate attention whoring girls that do the same thing and would get upset at her for following through but I did still ask her. 2 days later in the afternoon, while i was pre-occupied with something on the computer she kept asking me questions while grabing my dick. Asking me if I would like to see her with a girl and if that would turn me on. I was busy with something and a little weirded out by the questioning cause I thought she was tricking me so I didn't give a straight answer. I just kept asking her questions like, "Would you like that? WOuld it turn you on? YOu want to lick another girl?". SHe kept getting hornier and saying "yes i wanna see your face when you are turned on". So fast forward to that night when we are having sex she gets into this fantasy again and starts describing what she would want to do w/ the girl. At first she was talking about licking her pussy and clit and then having the girl eat her out, describing to me in detail. AND then it progressed to her saying, "And then i want you to fuck the girl and see the look on her face while you give her pleasure". I was in shock at this point and got her to keep talking by playing along where she continued to talk about me fucking another girl while that girl would eat my gf out. At this point my heart starts caving in and I see how far this fucked up maze is by continuing to play along. I say, "what if we went to a swingers club and we switched couples". At first she was precocious while i described how i would fuck this other imaginary girl while she was getting fucked. And all she would say is "yahhh". When I asked her directly if she would like getting fucked by this other dude she would say "noo i only want you but i want to see u fuck a girl and then eat her out". One last weird fucked up thing that happened was while she was really working herself up and getting horny she said, "i want to see the other guy suck you dick too". I quickly stopped the game at that point and said we aren't opening that door and she went back to her girl fantasy. At this point I wasn't turned on anymore and quickly got her to bust a nut and then finally busted mine. Now this all would definately not be a problem if I wasn't serious with this girl. We plan on marrying in the distant future and at the present moment spend tons of time together. I just feel in a healthy relationship, one person in the couple would definately not want to see the other get fucked by someone else regardless of sex. Also shes from a divorced family where the dad would beat her mom. I wonder if this has anything to do with it cause I do notice she strives for attention from men because of it. Does anyone have any opinions on what is going on? Mental disorder, tired of me, guilty about fuckin someone else, or am i just over reacting?