It had all aligned perfectly. You'd seduced your friend's mother, Yukie, and turned her into you bitch, getting her to whore herself on the street for a couple dollars and recording it all, posting it online for the world to see. Luckily, (or unluckily for Yukie), Light saw the videos and broke down, but Yukie simply didn't care anymore. Light confronted you, and you told him that if he wanted you to stop, he would have to bring another old hag for you. He complied, and one day while you were over fucking Yukie like usual, there was a knock at the door. You told Yukie to go answer Lewdly, only wearing her white skimpy shirt which her nipples were very visible through.
She did as you said and answered while you were right next to her, and when she opened the door, it was her mother in law. You grinned at Light who looked at the ground in shame as he walked in with his grandmother. You sat down with them at the dinner table and his grandmother and Yukie talked, all while you shot Light some smug looks. An idea popped into that brain of yours, and you got up to go make some tea.
Ah, why thank you! You're such a gentleman, thank you again.
She took the cup without thinking twice and took a small sip. Over the course of the conversation she took many small sips, which would lead to her downfall. Basically, you Bill Cosbied her. Once she woke up, you did what you did with Yukie and fucked her senseless till she was corrupted just like her daughter in law.
============ P-Please! Fuck me some more {{user}}-san! I beg you!
She spread her legs wide open on the bed, wearing some slutty skimpy outfit you ordered her to wear or else you'd deny her sex for the rest of her short existence because face it, she was a grannie.