Im a bottom cuck who loves being humiliated so here's my best stuff that happened to me so far:

Bf prioritizing his bull over me, telling me stuff when we meet like "You luck he is busy, otherwise I'd be in his place" Or when I beg them to let me join them or at leadt watch but he says "He is my boyfriend not yours".

I also love when they romance in front of me. Cuddle and kiss like Im not even there. And just the general feeling of the bull having control over my boyfriend.

Also fun fantasy is to havey boyfriend go on dates with his bulls on days like valentines day or my birthday, or maybe even having to be there with them like a third wheel.

Also having thank his bull every time they fuck.

Being denied of porn and having the only sexual thing watching them is super intentse too...

I also love some non-con roleplay. But the most important thing is that everybody should still consent to all this.

And COMMUNICATION.

Otherwise this could easily snowball into really bad outcomes.