I want to suck a cock but I am married.

Little cocks are easier and more comfortable to suck and just as much spunk comes out of them as big cocks. Additionally, a man with as small cock doesn’t make you gag as much when he holds your head and face fucks you.

Go out and suck dick...lots of it. See if you really want it. Pick really tough studly dudes who will make you their toy. That control over you is what you really want.

It’s great that you have been able to tell you what you want. Just because she isn’t interested now doesn’t mean she won’t be down the track. It can take some time for the partner to get on the same page.
Ask her if you could suck a dildo with her or ask you to teach you how to suck on a dildo and play like that.
Fuck her with a dildo and then pull it out and suck on it enjoying her juices. As long as she knows she is still your number one she may start to think about you sucking an actual cock.

Suck a dick and don't tell her

My wife and I practice BDSM, and I am into humiliation. This was my gateway into forced cock-sucking, and being anally violated. It may not be for you, or her, but, you might try this. Get her some sexy fetish wear. Buy a small, cheap, rubber flogger. Get her to use it on your butt and upper back. Give it, at least, fifteen minutes. Then, slip a finger into her pussy. If it's wet, she's interested. Take it from there, and, maybe go to a club where others do such scenes. With patience and practice, what you desire can eventually happen. Best of luck !

To bad your wife will miss out on it. If you want it do it if you like it keep doing it

What about the guilt?

Guilt is a self manufactured thing and serves no practical purpose. We all make mistakes, yes, but guilt is negative and useless.

You're a faggot. Don't be a pussy too. Go suck that cock and feel guilty you twink

Go suck that cock!