Been with both

I've been with a g/f of mine and she has now taken up with a guy that I have been with also. We're still all very good friends. Would it right to suggest a threesome?

 

only if they are the sorts of people who like threesomes and who are secure enough in their relationship that a 3way wont irrevocably fuck it up

 

If your ex is dating this guy, then I think they would have to be the ones to invite you into their love making.

 

you gotta talk about it first, thoroughly, just so there's no jealousy. good luck!.