So, I know I am going to sound like a huge loser, but here it goes. Started seeing this girl (R)not long ago, and it had been going all right, but one night I ran into her older sister (C) at her work-they both work at the same place. We went out for drinks and one thing led to another and I drove her home and we did it in my car. She also has a man. It happened a few more times-my gf's sister is way more sexy hot. The thing is is she wants to keep hanging and not tell her boyfriend. But, I just can't be that way. I feel bad whenever (R) and I go out-she is a nice girl but just doesn't do it for me. I told her sister I had to come clean and then we could take it from there, but she says she will deny it. She lies to her sister all the time, about dumb stuff. So, do I just break it off with (R) or tell her what is going on?

You need to leave them both alone. For them both and for you. You cannot end a relationship and start another one right away, you will end up unhappy.

You cheated on your girlfriend with her sister, if anything you need to come clean with your current girlfriend and walk away from this whole mess. Leave them alone, you've ruined your relationship and the one you're trying to start will never start on a good note, eventually crashing and hurting both of you.

Next time, keep it in your pants and don't be so shallow. It will come in handy the next time a common situation occurs. Leave them alone man, you've ruined it.

I don't know about a loser - you actually sound like a tosser to me.

What will you actually achieve by telling your GF? She'll be hurt because you've been cheating, and what's more you've been doing it with her sister who also has a BF. The sister sounds completely untrustworthy - she lies to her sister and she's cheating on her BF, and she's said she'll lie if you 'fess up about what's happening.

Oh what a tangled web we weave! You're in a real mess aren't you?

I think that you probably need to do the right thing and tell your GF. Then leave them both alone. They will both be angry with you for different reasons. Get the hell out of there.

And, next time - try and think, but not with your d**k.

So you're going to break up with your girlfriend and then date her sister but the sister is going to continue dating her boyfriend? What the heck is wrong with you?

You can't have either one. You don't want the current girl and the sister doesn't want you enough to come clean.

The sister sounds like she'll spread her legs for anyone, even her sisters boyfriend. Ya, she's a keeper. NOT!

Dump them both, go find someone else, leave that family alone.

My advice - stay single, dude. You aren't ready for a relationship with anyone right now. Sort out what you want instead of breaking other people's hearts with your selfishness.

Remember, what goes around comes around. For every heart you break, expect your own heart to be broken later on down the road.

~ Tee

Ditto to what everybody before me already said...

And seriously if you two got together, would there really be any trust?

Just walk away because coming clean will do more harm than good. And what would be the point- do you think it'll cancel out the evil deed?

Neither of you are ready to commit to someone else. Leave the sisters alone and pray that R doesn't hunt you down and maim you.

Your not even remorseful. Saying things like her sister is hotter than her.

I've a few othe words to describe what you are but I am not going go there.

Break up wit girl asap and tell her truth and you done scar this girl for life.

After you tell her you better run for the hills because who knows what the other sister boyfriend might do to her or your soon to be ex girlfriend.

If you think the sister going be with you then you think again and she is going get what is coming for her to.

In the future think about your actions before you do things. A man doesn't do things like this but a boy does.

Time to do something you might not be use to--man up.

I never said I was looking for love-is my situation really that uncommon? Does anyone think anything good can come out of this?

The only outcome that is going happen from this situation is you getting a broken limp or a beaten up by the sisters. I hope they don't have any brothers.

I never said I was looking for love-is my situation really that uncommon? Does anyone think anything good can come out of this?

It is uncommon for someone to screw around with an entire family. That's what you're doing.

What do you think will happen? Do you think you'll get together with her sister and everything will be okay? Don't you think she'll be hurt, betrayed, mad?

No good will come out of this, there's no possible way for you to get what you want and have it work out for everyone.

Leave that family alone, you've done enough damage. Move on.

You have much to learn, so you may as well start with freeing your girlfriend from your ignorance, and learning whats right from wrong the hard way.

A hard head is usually the sign of a soft a$$!

One man to ano... nevermind, you'll learn.

This thread should be titled "How to make 2 sisters hate each other"