Help! Partner wants me to cum, I don’t

Hello all! I’ve recently gotten into a relationship with someone who really aligns with me and my kinks. He’s very dominant and sadistic, and we have almost every kink in common. Except, this one. He’s very much into edging me and when I brought up chastity he was very excited, but the concept of denial, not so much. He wants me to to cum at the end of our sessions, but I like the desperation denial gives me. I’m going to talk about it with him soon, so how can I convince him that me not cumming all the time is what I want? What pros and cons can I use to help him understand? Any help would be appreciated! female orgasm denial Get your own Orgasm Control toys: For men: http://www.amzn.to/1V6XQvv For women: https://ift.tt/1UWn54n