It's only a good idea if you know where the lines are drawn and you don't cross them. That only comes if you have respect for the other person and where their life is at. His gf would definately have a fit if she found out that I was there and he didn't tell her about it. So he called her first and she said it was cool, so we hung out. I also told my husband. If you feel it would be uncomfortable or you'd have to keep secrets about it, don't do it. But if you can get past the bs in life and do it and have fun, go for it. Hell yeah I wanted to jump on him and lick him, but I didn't and I won't, but I will smoke with him and talk to him and hang with him as long as it's OK with everybody involved. At this point, no one can stop us from having some sort of a relationship with each other, so our signifigent others should be happy that we are only friends.