I have a jaguar cub plush which her tail looks like a cock so over the last few years I wanted to know why hasn't someone made a vid of any big cat chicks that jerks off using her tail then have her tail cum on her or inside another chick or male or even inside her.

Cuh?

You mean like tail_sex?
rule34.xxx/index.php?page=post&s=view&id=9832532

In a different way yes in which the tail cums not a cock.

There's plenty of art involving various forms of tail play.

As for why there isn't one of your specific request, why, that's because you haven't paid anyone to make it. Porn doesn't get made for free.

That's b/c the artist charges too much for making porn, even big sexy plush site costs too much just for 1 huge size plush, & the owners of big sexy plush should actually charge 30 dollars for a plush of your choosing not 1000 dollars or more.