Martian

For emphasis:

Sex is never zero sum. Or at least it shouldn't be. It's all about the individual boundaries, and how the two (or more) people can interact and have a mutually satisfying relationship within those boundaries.

Looked at another way: if your girlfriend/wife is begging you to tie her up and you consider trying it, does that mean she should get to tie you up too? What about spanking then? What about anal penetration?

WarMoney being comfortable and even encouraging SwingGirl to have sex with another man does not in any way mean that SwingGirl has to or should be comfortable with WarMoney having sex with another woman. It's up to her to decide whether or not that's outside her comfort zone, and there's nothing wrong with her deciding either way.

Back on topic:

If what you're looking for is for someone to tell you that this is normal SwingGirl, you've got a thread full of people telling you that. This is perfectly normal and if you're both comfortable with it then you should do it. There's nothing wrong with you or him or your relationship together for wanting this.

All you have to decide now is whether or not you do want this.

__________________
I wake up in the morning more tired than before I slept
I get through cryin' and I'm sadder than before I wept
I get through thinkin' now, and the thoughts have left my head
I get through speakin' and I can't remember, not a word that I said

- Ben Harper, Show Me A Little Shame