What would you think?

I think she fucked him! Has she asked you to lick her pussy lately after she comes home? Does her pussy feel unusually loose lately?

You know she's fucking him.

I would bet that he's hitting that thing HARD! Make sure she understands that you are anxious to hear the details and that you will love her for it if she's truthful with you...also that you relish the idea of her having a lover.

Make her feel sure that she will not loose you in the process and that you want the truth about her realationship with other guys.

She knows that I really want her to fuck him. We talk about her fucking someone with a big dick every time we have sex. So far he has the biggest dick she's ever seen. She told me that his cock makes mine look really small, and she knows what a turn on that is for me.

But....she has also told me that sneaking around is a big thrill for her. That turns me on too! I just want to somehow be a part of it.

And there have been a couple of times that she felt looser lately. I guess she'll tell me when she's ready.