Not exactly very original, this, but I'm cheating on my husband with my gym instructor. I know- cliche alert.
But it's just too exciting to stop it. I usually suck him off after every session (and yes, I do swallow- which I have never done for my husband). I have even kissed my husband barely twenty minutes after giving my instructor his blowjob- I came four times while masturbating that night thinking about that.
My gym instructor says as my body improves, he may consider fucking me, as well. I hope he does, because not only is his dick nice and big, but I will absolutely cream at the chance to have my husband lick me out with my instructor's sperm in my pussy.
Wish me luck with my plan. I'm able to exercise plenty in my own time as my husband, bless him, earns all our money, and we have a nanny to look after our 1 year old. I'm hoping that by June, my lovely husband will have tasted my slimy adulterous pussy. Here's to cheating!