Do bulls need cuckold couples?

Well, in my opinion it's other way around.

Cuckold couple (or just couple for that matter) needs Bull for realizing their fantasy.

The existence of Bull is because of the couples wanting spicing up their sexual life and not the other way around.

But if general, for Cuckolding sex to happen there needs to be all three:

01. A cuckold husband/bf

02. A Cuckoldress wife/gf

03. A Bull/lover

I am not exactly sure in what context the question is asked. But a Bull surely need a cuckold couple for Cuckolding sex so much so a couple needs a Bull for it.

For me personally, it's always amazing meeting couples if chemistry is there and we are all comfortable to enjoy all the erotica this lifestyle has to offer. I do need a couple for that. As fucking a woman one on one is not the same as compared to fucking someone's wife/gf in front of her husband/bf and putting a show for him.

But again, I would like to emphasize, the Bull only exist because of a couple's fetish. A ‘Bull’ stand alone makes no sense. The very definition of a Bull founded on the basis of a couple who is opening their sexual life.

Hope this answers your question!

Happy Cuckolding!