Oh...You weren't supposed to come home this early. I told you I was going out with some friends, but of course now that you've seen me in this sexy lingerie I will have to tell you the truth.

Yes, I am cheating on you.

I am cheating on you with someone much better and more masculine than you will ever be.

Awww, did this hurt your feelings?

I might have an idea that will work.....