I'm not really into humiliation as such. I'm more than happy to clean a guy up after he's fucked Lynn or suck him back to hardness. But I'm bi so I enjoy that.
I do love eating Lynn's creampies which some might see as submissive but again I don't feel any humiliation doing that after all I love watching other men fuck my wife and cum inside her, and eating their cum out of her seems like a natural culmination of that which turns us both on. Sometimes I'll do it while the guy is still with us, sometimes after he's left, or even when Lynn gets back if she's been playing alone.
If anything Lynn is the one in our relationship who most gets off on humiliation. Not with every guy she fucks but certainly when she's playing with a regular bull - then she really gets off on being very submissive, being used roughly, verbal ......, pissplay, being shared with the Bulls friends etc.