My stepson helps me cheat and get back at my husband

I found out my husband was cheating and I was furious. I couldn't believe it and I knew I had to make sure to send him a clear message to never ever do it again. I vented to my stepson about it and he came up with a brilliant idea. He said if I really wanted to make my husband pay for what he did, I should fuck him, right here and now...that'd really hurt him where it counts.