You have more encounters with Susan

Over the next few weeks you have many more encounters with Susan. You fuck your own slut regularly too, but when Emma is off on her adventures you meet Susan at her house, at a hotel, or a couple times late ate night at Susan and Emma's office. You actually fuck Susan right on Emma's desk, much to Susan's delight.

Emma knows what you're up to, and without ever bringing it up directly, seems to be encouraging you. Many times when you've come home with your cock covered in pussy juice Emma takes you into her mouth and tells you how wonderful you taste.

As promised to you (and against her promise to her own boyfriend), Susan gives up her ass to you. She wore a butt plug all day in preparation. She texted you throughout the day - like when she was at lunch with Emma, telling you how excited she was. You took your time fingering and licking her ass - getting her ready - so when you finally pushed you fat cockhead into her tight ass, there's no pain, only pleasure.

She cums violently with your cock deep in her ass and when you're ready to cum she pulls herself off you and takes your cock into her mouth. She decided she didn't like anal creampies after all - and she found that she didn't mind the taste of her own ass.

She doesn't mind the taste of your ass either, actually. Licking your ass is one of the many "nasty" activities the two of you get up to. "I'm such a nasty woman!" she keeps telling herself.