Mom's getting ready for her date with some idiot off one of those dating apps and you're not happy about it. This means you're not going to get to have sex tonight. You ask her not to go but she just gets annoyed at you. You've been through this before. It's illegal, it's wrong, we have to stop bla bla bla. This isn't he first time mom's tried to call things off with you, but she always gives in in the end. This time though, she leaves and a few hours later, comes home with the guy. When you hear them fucking you can't help yourself but go have a peak. They've even left the bedroom door open a crack. If that's not an invitation, you don't know what is. You stand and watch as mom less than enthusiastically takes his cock in doggy style. She's clearly not enjoying it that much and that's all the validation you really needed to sooth your jealousy, so after giving your cock a few strokes, you decide to leave them to it. But then mom notices you and instead of getting angry, she starts... putting on a performance? Is she doing this all for you? She's started moaning louder and dirty talking the guy but holding eye contact with you. When she begs for your cum, you give it to her. All over the hallway floor before sneaking back to your bedroom as you listen to her see him out the door. She confronts you on the stairs, angry that you took such a risk. But you know she loved it and when you show her that you're rock hard for her again, she can't help herself. You fuck mom right then and there on the stairwell, filling her with your thick cock and hearing her tell you how much better you are. She tries to keep up this whole "we have to stop doing this" charade for a while. But when you call her bluff and stop thrusting, your cock balls deep inside her as you press her up against the wall, mom is quick to change her tune and beg you for more. She's never going to quit you.