Help Finding Story: Newly Divorced Mom's New GF Kelly

[IcarusFallen987]

I found this story about a recently divorced women bringing home a few men but then she brings home a women named Kelly. The son thinks she's really hot. She works out and walks into the kitchen topless in front of him and he sneaks upstairs to peak at his mom and Kelly and then she kicks him in the groin as "punishment" but promises to also reward him.

I've searched tags, with Google, using site and index but nothing so far