Looking to find one of the "anonymous " hot porn stars that take it in the ass, and a good  hard dp and look like they are loving it.  They aren't "name stars" and are all over xhamster.  How are they found?  Are they available? Escorting pays a lot more than porn, is there some specific place where they are found?

Your phrasing us extremely confusing. Even if they're "anonymous" their name should still be on the video, so just Google them.

What you are saying is you want a bad bitch that has done porn but isnt pricey like a porn star.  

I watch my porn on xhamster and a lot of the really hot videos don't name the actresses.  The titles will be stuff like "milf takes it hard in both holes".  Its a really hot chick and she can really take it good, but, she isn't named anywhere.  There are just tons of videos like that.  I'm looking for those ladies.  I'm not cheap, but a lot of times with escorts you get a good looking woman who is a good gfe date but just plain vanilla when it comes to sex.  I'm looking for GFE with hard kinky sex.

OP might mean pornstars that aren't "mainstream" yet?

Check out the comments for the name, look for them on X, check their posts to see if they do “privates”, email, or dm them…be nice.

A lot of vids do not NAME the talent in the title or credits or sometimes attach an incorrect name but there are things to try to ID her.
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1. Scroll down to the comments section and you will often see "Who is she?" or "Who is the MILF from 4:20 to 6:30?" (for compilations). Sometimes, there is a reply with her porn star name. Sometimes "That is NOT pornstar Jane Doe. Anybody know who she is?"  
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2. You can post a link here (TER / PS Board): "Can anyone ID the actress in this clip?" and embed the hot link or most people will ignore your Q because they aren't going to hunt down the link just to answer your Q.
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3. If the clip is from a major company (Brazzers? Evil Angel?) and not somebody who cut and pasted to post some clips (Fred's Favorite Clips), go to the company web site and look for that video and see if they ID the actors. By law, they must have papers (2257, etc.) on everyone in the video but I don't know if it has to be posted publicly.  
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4. If there is a decent still image of the party of interest, do an image search (google, tineye, AI, etc....).  
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5. If you want to create an account on the porn site, YOU can post "Who is she?" and see if you get a reply.
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6. IF you can ID other actors in the video (say: A, B, and C), you can search the Internet Adult Film Database  
http://en.wikipedia.org/wiki/Internet_Adult_Film_Database  
to see THEIR films individually (A or B or C = 100 hits total) or even films with 2 or more actors (A and B) to shorten the list (maybe 10 hits) and then see who else is in the vids with the actors you know.
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7. Search TER Profiles for "Porn Star: [x] Yes" and "Age [x] 40-50 and [x] over 50" (for MILFs) and make your selections THAT way (Profiles / Reviews to good choices to ads to dates) rather than the long way around (Video, Name, Ads, then read any TER Reviews ("Rip Off")) just to have to start over again.
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In general, what you see in a video is NOT what you will get BCD! Read some "Porn Star [x] Yes" reviews. "In her vids, she does everything. In the room, she's got rules: No this, no that, no other thing, not that either, ..."

Ava was insatiable wasnt she? I had some wild times with her

Ava just came out of retirement to re-start her porn career.  One wonders if other options are also back in play.