The media seems to imply (at least according to my friend D), that everyone is having threesomes…. Watching the weddingcrashers I love Will Ferrell, 
and my favourite scene is where he is trying to propose, saying “let’s take our relationship to the next level”, and she says sure, how about a threesome with the two Brazilian girls we met”…
The novel I was reading yesterday (brain candy, but well written brain candy) talked about the 5 date rule. You are dating someone and at the five date mark, no matter how the relationship is going, the guy asks how you happen to feel about threesome? What do you do? How likely is this going to happen, and are men really thinking this? The girl character in the book, says, “Yeah, I love threesomes, I especially get hot when the two guys start kissing…” So according to phone sex survey’s about the most popular phone sex fantasies for men, sex with two women (and then 3 women and 4 women and so on) are right up there (followed by anal sex, light S&M bondage, MILF’s – older women, and girls in strapons round out the top 5), so yeah your guy is probably fantasizing about it. Asking about it on the 5th date – unless you met on adult friend finder.com, I would suggest you run.
I’m writing a book on non-monogamy and it has the steps you can take to open up your relationship gently without hitting landmines. Duckling dating the Social group I run has an area to meet others interested in non-monogamy with grace and integrity. Check it out.
