I have come to realize that a lot of people fantasize during sex with a partner. I believe my husband has done this since after the first few times we had sex. I think he thinks of body parts and other women -or- watches porn and thinks he is the man in the Vid with the other woman, etc. I don't have a problem with it now....I may have had a problem in the earlier stages, but not now. I even help him fantasize by wearing wigs, putting porn on, etc.
However, I do not fantasize during sex much except maybe to think of us being in a FFM threesome or to act out what is being done in the Vid.

My question is,...How many of you fantasize during partnered sex and what do you fantasize about?

I never fantasize during sex - though I certainly do at other times.

I do it all the time and I think about a really sexy man. It's fun and it feels good.

I just have to be careful I don't call out his name accidentally.

If the sex isn't great, then yes....

Sometimes to make for a better orgasm..

well theres always sex toys you can use.

Forget that. Nothing like the real thing.

I fantasize I am having a threesome (FFM) and my husband is doing the other woman too...or she is participating somehow. Sometimes I fantasize I am someone else...and he is having a one night stand or affair with me. heehee.

As for why he fantasizes...I think it is for the same reason that I do....He just has done it a lot longer. He is wiser than I am in a lot of ways....especially related to sex. I am more emotional. I think he also likes to spice up our sex life and just enjoy himself. We have sex a lot, and we keep it exciting. Fantasy is part of that. Even if it is just about envisioning some body parts....it's innocent and fine with me.