I've been diving deep into this fetish since a few months. And right now nothing gets me hard, other than imagining my ex being roughly gangbanged by bulls with dicks twice as big as mine (4.5 inches).

I imagine myself being tied up and forced to watch them devouring her and humiliating me. My dick would get painfully hard just watching it. She'd be on her fours being double penetrated while also being deep throated and everytime she cums I'd get a tight slap and a hard kick in my balls. Unfortunately she just can't hold her orgasms back!!! She keeps quivering and shivering every 2 mins cumming all over their huge cocks like a squirt machine. They keep fucking her real good just to make her cum and abuse me.

Everytime a guy cums and dumps his load in one of her holes, he'd instantly be replaced by another without resting that hole. The bull who just dumped in my ex would walk up to me and mouth fuck his now softened cock (still big enough to choke me) just to clean it up and get his cock ready for the next round of fucking her. I'd finally be forced to lick up all the cum and sweat that has dripped down from her and the bulls. I'm then made to slurp up att the cum that the bulls left in her used up cunt. While I'm doing that on all my fours, i stimulate her clit unknowingly and she cums once again on my face and I'd get one final fick in the balls that are brutally bruised and hanging like a pair of cherries.

I just cannot jerk off without imagining myself being in this pathetic humiliating situation!!

More suggestions (in comments or messages) are welcome which can make me feel more humiliated and useless.