This topic has come up here in Sex Talk.

Just in case you're asking because this is your own situation than couple communication is vital - what are your expectations? Hers? What if either of you pays more attention to the stranger than to your partner? All possible outcomes need to be discussed and decided upon.

It's confusing...

You don't know who to kiss or look at...

Women don't like that!

And some women LOVE a threessome. No generalizations apply when it comes to sexual behavior.

Not sure I know of any men that would say no. I think Isadora is right....you have to communicate before to make sure no feelings are hurt. I do wonder though if the person would then become a friend you would invite over for other activities or just for sex. And then what happens if the man is the one who wants to do it again and the women doesn't. What about if the husband suggests inviting another man for sex? Anyone ever have that experience?

Playing in threesomes is a minority sexual activity, but if only 1 percent of couples do it, we're talking more than 1 million Americans.

If you're into threesomes, they can add spice to sex. They also help some couples deal with one spouse's bisexuality. Our culture takes the position that people are either straight or gay, hetero or homo. But many people have sexual feelings for both genders. Maybe they identify as hetero. That's certainly easier in the U.S. But they have some homoerotic feelings. Playing in a threesome allows them to enjoy that side of themselves in the context of their heterosexual relationship.

But threesomes can also be fraught with relationship peril. Couples interested in experimenting should set clear ground rules for how they want to explore this.

Michael, can you say more here? What kind of ground rules do people usually set? Any examples? land mines to avoid?

we have talked about threesomes with other women and think it would be a experience that could help own sex life.