Taking The Twins (Non-Con Edition)

John has a kinky fetish, a fetish he loves to visit upon girls who are completely unaware of what he is doing to them, but it isn't until he accidentally involves the woman that raised him that his habit starts to take over, soon he won't be satisfied until he has lived out all of his fantasies on her, and both of her twins. His opportunity will arrive soon, what will he do? Non Con Fetish Edition of "Suck It, Mum!"