One of the best girls I've ever filmed was Abigail from Maxes
External Link/Members Only .
Was filming the BJ POV and she asked me to turn around the screen so she could watch herself. Just before the sex, she made me check the camera (on a tripod by now) was getting all the action and again wanted the screen turned so she could watch it. After I came on her face, she moved right up to the camera, and used her finger to wipe the cum into her mouth, only girl that's ever done that for me, and I didn't even ask.
The only downside is price. She's £200 for the hour and it's £100 extra for filming.
If price is no problem for you, then also check out Alex on Maxes, she's in the incognito gallery, but if you called them, I'm sure you could arrange a booking. She is a proper PSE. I actually walked out weak at the knees after our meeting. I think she is £250 an hour
Someone else you should keep an eye out for is Candi Blows. She's actually retired from porn and escorting, but has hinted to me that she is thinking of doing a few tours of London again. She's not a typical pse, but she has no problems with the camera, actually looks into it when she's giving a bj, and she absolutely loves getting fucked, which comes out great when re-watching it.