My experience with a married bi guy’s ass last night

I went to the bathhouse and after hanging out there a bit some guy in his 40s came to my door and asked if he could come in. He had on a t-shirt on top and a towel on the bottom, and a baseball cap. He asked if I was married and I said yes, to a man. He said he was married to a woman and she didn’t know he liked to play with guys. I wasn’t really interested in his life story and just wanted to play, so we got down to 69 sucking which he was VERY enthusiastic about doing. I was on bottom and he laid on top with his decent-sized cut cock in my mouth, his balls bouncing on my chin. I promise this isn’t a stealth scat thread, but I was massaging the outside of his asshole and spread his very smooth and firm ass cheeks open and noticed there was a musky smell. It didn’t smell like shit, it was more like a combination of piss and sweat and maybe something else that had a tangy edge to it. I sniffed my finger and immediately thought i’m not going to rim this guy because it smells, but after he left I kept sniffing my finger and it became enthralling to me. It was like the more I sniffed it the hornier I got. It didn’t seem gross, again it didn’t smell like shit. But he definitely smelled like he worked all day and didn’t wash his ass before coming to the bathhouse. Still, it was a GREAT smell and I wish I could experience it again. Anyone else get turned on by a guy’s ass musk?