Boring answer: Don't do it. Break up and maintain your self-respect.
I don't care what you do, whore.
But I do hope I never meet and trust you.
Tell your partner up front. He might be a freak and wants to watch you cheat.
These things happen.
exactly, R3, unless OP hates his partner.
Wanting to cheat is nothing. But don't act on it, OP.
Senator Graham, The Family will forgive you.
You've already sinned in your heart; your ass may as well complete the deal.
Why do you want to cheat?
The reasons will help you answer whether you're bad.
And, yes, cheating will make you bad, whatever the reason.
Right now, you're just experiencing a fairly common human desire.