What are the full names of those two? Can't seem to be able to find them anywhere but iStripper

The names of the girls are not allowed, except as used by istripper.

@TheFauchet try searching for the names on https://www.thenude.com/
Using advanced search, enter the name and where it says "has covers from site" enter iStripper.
That narrows it down and perhaps you can see the models that interest you and their other names.

I google the "%name%" and "istripper" then look for the indexxx link.

Kristi has not done much work at all but Casey is well known and has done a lot.

Both are lovely ladies indeed.