Theme?
 

What kind of theme or cms does this site use?

Ebony Pulse TV - Black and Ebony tube porn videos.

Can't detect either sorry x

They are using a custom script

Looks custom indeed, he got a few of those:
Perpetual Tube - Free porn
Desired Tube - Free Tube Porn Videos
...

I don't think this from the same guy but i seen alot of these type of sites and wonder what are these sites are called.

https://www.tubegalore.com/

They are called tube sites.

.

makes sense. Those sites are maybe custom made but i'm sure at least wordpress has a theme for this somewhere.