I would be honest with your girlfriend, altho it may hurt and you may lose her, sooner or later the truth will come out and she will be hurt anyway, this way you can at least avoid overreaction, two girls tryin to kill each other (and you, if they are smart).
It is the best way to go. You can still have girlfriends that swing, ya know. If you want to have your cake and eat it too, you will be dissapointed.
Speaking as a chic, you are obviously gonna hurt her sooner or later, better now and by being honest that being caught.
Besides, what about karma? Say you fuck around on her, and she finds out, (and hopefully she ain't the dick-choppin type). Later in life, you meet this chic that is EVERYTHING to you, you don't want anyone else, you are in love, YOU are the one who wants to get married, and then you find out that this chic you are so gung ho over does the same thing to do, and you catch her with some other guy. It would be karma.
Be honest with her. It will hurt, she MAY leave you (then again she mite not) but at least the truth about it will be out in the open.
Now, if you have already cheated on her, I don't know if I would tell her that, just tell her the truth, that you are not ready for marriage, and that you think you need some time single.
Oh, and btw, you WILL get older, and chics will be harder to come by, maybe then you mite wanna settle down. My hubby mite get the same taco every nite, but at least it is here for him when he wants it, and he don't hafta clean his own toilet. (and for a taco, I have been told I am still pretty tasty. ) When you get older, the same taco every nite is still better than goin hungry, ask any old bachelor buying blow jobs from toothless people of questionable genders........
