Our Hotwives

I'm a guy in his early 40s, happily married and broadly sexually fulfilled, although in general my wife is considerably more vanilla than me. I certainly had much more adventurous sex when I was younger. Fairly recently I've gotten incredibly horny, like insatiable, and I set up a burner Reddit account to access NSFW suff without impacting my main acc. I posted some dick/body pics etc and enjoyed the comments. I've been into cuckold porn for a while, but not from a cucks perspective, but of a bull. I love the idea of dominance over both the hotwife and the cuck. Probably more so as I am the stereotypical opposite of a bull. I'm short 5'6", skinny, balding and have glasses. But, I can fuck and have a decent, if bang average, 6" cock. My question is (probably) theoretical but is there a market for such a bull? Is my new found kink and potential "career" as a bull over before it starts?

The main reason that I'm asking the question is that within days of posting the pics in a few subreddits, I've already had 3 invites, and I just can't imagine any of these would be followed up once the hotwife knows of my stature and looks.

This is almost certainly a thought experiment on my part and I wouldn't follow through as it would likely ruin my life. (But man, one of the offers is a good un and I've been clear on my looks etc and it's still on the table).

Would just like to gauge the response, I have no intention of cheating on my OH.

I am a just a wannabe but I fantasize about a man with an average cock fucking my wife. She can’t take me doggy style because I’m just a bit too long to where it hurts her. I fantasize about her boyfriend having exclusive rights to the doggy position.

That's an interesting take. "Owning a position" sounds fun. What are your thoughts on looks and body shape of the bull? Would it be extra humiliating having your wife fucked by an guy of lesser stature?

When we were married, my wife wasn't interested in the size of her lover's penis. She had some boyfriends that just happened to have large ones and she enjoyed going with them, but she didn't seek them out specifically.
She just enjoyed the attention from other men, irrespective of their size. She enjoyed the excitement of having sex with other men (and women) , despite being happily married. With me, we made love, with other people, it was just sex and that's what turned her on.
I'm slightly above average size but I didn't really excite her, yet one of her long term lovers was 5 inches and she loved playing with it. She used to blow him every morning, after their night shift and she enjoyed doing it, partly because he didn't make her jaw ache.
One thing she did look for in a lover was experience and the confidence that went with it.
I wasn't experienced and she never wanted to teach me what she liked; instead, she'd get frustrated sometimes and tell me that I should know what to do.
One of the people that she enjoyed going with the most was her much younger nephew. She loved the fact that he really seemed to fancy her and definitely had a thing for her boobs. His cum was delicious too, the best either of us had tasted and she loved going down on him but she wouldn't fuck him while he was inexperienced. Once he had a girlfriend and had moved in with her, he'd call in and they'd fuck whenever he was in the area for work
Some people have a fantasy about the wife being screwed by someone with a big penis, but not everyone.

My wife has only ever had my dick and it’s only 4.75” long so your 6” would be a nice upgrade for her. It’s your confidence and behavior that matters more than what you’re packing anyway.