My sister-in-law's sweater slowly, seductively sensually rises up over the perky mounds of her shapely breasts as she engages in a naughty little strip tease. And I can't help but stare and compare her immaculate boobs to the saggier, older, more used tits my wife had. My wife used to have amazing curves, until our son snacked on them for over a year and deflated them into what they are now: not her younger sister's immense, sexy tits.

I told her I didn't want to see them and kept protesting, no matter how eager and persistent she was, but now I can't stop staring as she casually leans against the countertop in the bathroom off the master bedroom. The cute colour of her areolas, the slight perkiness in her nipples making me wonder how much longer and firmer they would become if I were sucking on them.

Wait. I can't be thinking about my sister-in-law this way. How did she talk me into sneaking up here alone with her? Why did I agree, knowing it could ruin my marriage and split up my family? Why have I always had a weakness for her? What do I do now?

(Hmu to sort out the details of how we got here and where go from here. What is our backstory and has this been building for a while? Is it mutual or has the seduction been one sided?)

Kinks: shapely, perky tits, breast play/worship, slow seduction, slow build, cheating, age gaps, clothed play, foreplay, dirty talk, oral, anal, hair pulling, spanking, thigh highs, short skirts, creampies, breeding

Limits: illegal, gore, unrealistic proportions or scenarios, beast