I know things didn't go well at the fertility clinic today. Your wife isn't made for breeding. All these years, you thought it was you but she's the pathetic barren bitch. It'll be months before she even let's you touch her, and really, what's the point. The sex wasn't that good anyways. I know you can't afford in vitro so as your step-sister-in-law, I'm willing to be what you need. Your sex surrogate and your breeder. I'll give her the offspring she could never produce and even after, when she's tending to it, I'll still be here with an open and inviting pussy.