Otrogen mot min man med vartenda hål

A guy my husband and I just met a few weeks ago who lives in our neighborhood offered to help fix our bathroom sink in the house we just bought. I had just finished up a workout and went to check on how it was going. He comes out as he had just finished and immediately starts coming onto me. He is obsessed with how I smell, even though I am all sweaty and gross. He is immediately hard, and kisses me. At first I push him away, and then can't help but keep going. In the back of my mind I am regretting every second of it as I am betraying my husband, but he doesn't care at all. He eventually convinces me to suck his dick, and cums in my mouth. Unbelievably he stays hard and still wants to fuck me. So I let him. My husband can never get this hard, or stay hard after cumming. First I ride his dick, and then he takes me from behind. He is constantly asking to cum inside of me, and I demand that he absolutely does not. I am not on birth control. WHAT HAVE I DONE.