I think she has a boyfriend...

I think my wife has a boyfriend. She cuts hair for a fireman named Corey and she has always been very attracted to him. The thought of her with another man has always turned me on and we've gone so far as to role play her having sex with him. Eventually, our role play has turned into her having sex with Corey. Over the last few months, she has gotten more and more turned on by the idea of having sex with him and our sex has been amazing.

Well, about a month ago, I saw Corey at the gym getting out of the shower. His cock was at least twice as large as mine (soft, anyway). He actually caught me looking at it and gave me a pretty "cocky" smile, knowing I had seen it. Well, that night I told my wife (Robyn) about it and she wanted to have sex with me immediately. Since then, we haven't had sex without her wanting to role play a cuckold scenario involving Corey.

Everything seemed to be going really well since then. I've been receiving some of the best sex of my life. But this weekend, I happened to see a text message that my wife sent to him (without telling me) that said she can't wait to see him again.

So what started as a fantasy now has me worrying about what I've started. And I wonder what they've done. Any ideas on what I should do next?