Script :
I’m your boyfriend/husband. You get a text from your ex that he is in town. If possible, there is some implied conversation between us in which I would ask which ex, and you would say his name (whatever you like), and then I would ask if he is the one with the big dick and you would say yes.
You ask me if it would be alright if you met him for coffee, and then try to convince me that it’s not a big deal by saying it’s not like you’re going to have sex with him. And then you think back briefly and longingly (though you try to hide it) about having sex with him for you see th...

Script :
I’m your boyfriend/husband. You get a text from your ex that he is in town. If possible, there is some implied conversation between us in which I would ask which ex, and you would say his name (whatever you like), and then I would ask if he is the one with the big dick and you would say yes.
You ask me if it would be alright if you met him for coffee, and then try to convince me that it’s not a big deal by saying it’s not like you’re going to have sex with him. And then you think back briefly and longingly (though you try to hide it) about having sex with him for you see that I am hard. You tell to take off my pants and show you. And you realize (and are surprised) that I am turned on by the thought of you fucking your ex.
You tell me that you want me to masturbate to the thought of you having sex with him. As I do, you continue to make sure I am picturing it, and describing it to me (maybe telling me which position to imagine, what exactly to focus on, etc.) and tell about how good he was in bed, how big his dick was, how he filled you up, that he was bigger than me, better in bed, and so on (you can be specific, like that you always came at least once and usually twice, or saying that he was the only guy you came with from penetration).
I am fine with mild humiliation, but it is not implied that I am terrible at sex. I am okay, it’s just that he is better, and you really want really to have sex with him again.
You reveal your breasts in a way that fits in with the story (say about how he pulled your top up so how could cup your breasts or something). You tell me that your breasts really turned him on, and ask me if it turns me on that another man enjoyed them so much.
Soon you tell me that you want me to cum while I am thinking of him fucking you. If you like, you give me a countdown (I know some people like that, so it might help with resale, but it doesn’t matter to me either way), while continuing to describe what you want me to picture.

At the end (after I cum), you tell me you are going to text him back telling him that you are definitely going to meet him, but you don’t explicitly tell me you are going to have sex with him (but you also don’t deny it).