The answer depends on several factors. Let's go through them. How did she approach you about it? Subtle or direct? The latter is usually a trap, but not always. How close are the sisters? If they rarely talk then it's less likely to be a trap. But you need to do some investigative work on that one. If your gf is trying to trick you you sometimes can weed it out of her with some casual inquiry about her sister. And finally, is the relationship you know, good? Is she performing adequately in bed and loving? If so, then don't cheat. It's just lame.
Hopefully your GF finds this thread and dumps your ass for even considering it. I mean really, you are a tool.
Think like a man and keep it secret. What more else to say. Grow some balls. As a man there is one reason for us on this earth, to spread our seed. Stop trying to be smart and do what is natural to us, thinking with our lower brain nature planned for you to spread where and when possible but make sure you use our new found knowledge to you advantage and pull out or put something on the end ! Satisfy the hunger !
Thats a bit like saying, money doesnt matter so I'll just buy what I like. I agree society is becoming less moral, spurred on not least by world leaders showing how to cheat to stay ahead. But bad morals still put you in bad places when caught out, societys rules.
this! your a muppet for even considering it. grow a pair and grow up, stop playing with peoples lives, you could possibly wreck a family here. Chances are, this "pass" that you think she made was nothing but "being friendly".
Don't chance it, the girlfriend could have told the sister to hit on you to test your loyalty. Similar type of sh1t has happened to me with a girlfriends friend and another time with a friends girlfriend. Both times initiated by the girl..The first time I didn't bite, but the second time I was bored and flirted in a joking way and the b1tch forwarded my messages to the friend and several others.
Some how I don't think that's a wise choice at all from what I seen my do and some have done that then got dumped and it's not right to do that to some one you say you love. @OP I wouldn't do it cause nothing good can come from this down the road.
Was just about to post the same thing, ha! Yeah pics or it didnt happen P.S only ever cheated on a gf once and that was enough (she packed a mean slap). call me old fashioned but if am with someone I dont cheat even if it was for a better model so to speak. oh and nice sister btw. there is no way on earth i'd ever make a pass at my bros gf/wife etc and that works both ways. certain things are just not done. maybe girls are diff though.
I've done exactly this for friends, "test" their boyfriends. Women are cynical, either learn and adapt, or get used to using the term "ex" more often.
Better get over it! It was a test conjured up between the pair of them. Please don't keep us in suspenders. Did you pass with flying colours?
I think the most important questions is, why do they have to be such bitches about it and play these little games. Sometimes I wonder if it's just because they get off on it. A Guide for Men: How to Understand Women