[vagabondprince]

i was going to ask basically the same thing rawbob just did...now i want to add a little more.

We didn't hear anything about your feelings directly toward the other guy. Because of this, i'm assuming that you don't feel exactly or nearly exactly the same way for him as you do for the two ladies, and it's the same for him probably. What i kind of imagine when i read your post is that both you guys are enjoying being able to be close to two women at the same time. If this is the case I foresee unavoidable power struggles between the two of you guys down the road, possibly about who gets who when, or any similar situation. You need to keep in mind that tension down the road is highly likely to tear a relationship like you suggest apart, and you want to make sure you're willing to sacrifice your current relationship with your girlfriend to take that chance.