Looking For An Incest Story

[Rembrandt_Pussyhorse]

All I really remember is that a mother teases her son and goes so far as to grind on him and maybe rub his cock, making him cum in his pants, all to turn on her husband who's watching the whole thing. I also remember that this part takes place in their kitchen, if that helps.

I know it's not much to go on, but does anyone know which story this could be?