Fuck Sarah behind Mason's back at every opportunity

Over the next few weeks you work hard to complete your slut training of Sarah - feeding her Slave4U basically every day and giving her lots of commands and lots of your dick. You train Sarah to need your cock inside of her - to be horny at just the thought of you - and **** to feel your cum inside of her or on her her. Meanwhile she'll still love her husband, Mason, but don't feel any sexual attraction to him.

The four of you - you, Emma, Mason, and Sarah already hang out a lot - so you have lots of opportunities to fuck Sarah behind your best friend's back. You fuck her in the bathroom at a restaurant - she's so horny she cums even quicker than you do as she's bent over the sink and you play with her tits she's been teasing you with all night by not wearing a bar. You fuck Sarah at a bowling alley and at bars. When you're all out and about, one way or another you fuck Sarah until you both cum.

When you go over to play video games with Mason at his house, it's very easy for you to sneak off for a while and fuck your best friend's wife. She had been prancing around in a very thin white tee shirt that showed off her tits after she was getting ready for bed. You couldn't hold back too long so you go pay her a visit, she's reading in bed when you enter their bedroom - reading 50 Shades of Grey, that is, with one hand down her short shorts.

You walk up to her with a finger across your mouth ordering her to be quiet, then you grab her shorts and pull them down her fine legs and over her feet. You pull your erect dick out and mount Sarah missionary position. She's still wearing the thin white shirt, but you can easily see and play with her boobs beneath it. You hold hold Sarah tightly around her throat with one hand as you stare into each other's eyes. You can see in her eyes how she has given herself to you entirely. In your eyes she can see her true master. You thrust harder, carefully not to be too loud with the bed as her husband who is your best friend is not far away. You squeeze your hand tighter around Sarah's throat. Her eyes widen, but then she cums and so you allow yourself to as well. You leave your load inside of Sarah.

She goes back to reading her book, now rubbing your cum around her clit. You go back to playing video games with Mason who didn't even notice you'd been gone for a while. Still you made a joke about how he shouldn't go into the bathroom for a while, just in case.