There are several website that sell face sitting videos including Fetish.com, Romanvideo.com and Anaconda.com. I can only speak to the DVDs from Anaconda - they are expensive but worth the money if you like face sitting videos.
Gotham Gold also has a series called Smothering Bitches and I think they are up to volume 41 or 42. You can check out their web site or they are also for sale on Fetish.com.
The only movie I've seen with this fetish was Pussyman's Face Sitting Fanatics IV with Olivia O'Lovely, Olivia Saint, Venus, Ice La Fox, Felix Vicious and Bella-Marie Wolfe. I bought it soley based on the cast and in that respect it didn't disappoint. I reviewed it and that can be found here.
Do you mean 'Smothered n'covered #3' from RLD? I haven't seen the other two but I'm seriously considering buying this one as it's got Alexis Texas, Nicara, Mia Bangg and Sandra Romain in it!! Sandra looks as hot as ever on the back of the box cover. It's realised in August and it stars August as well funniyl enough. Nothing says romance like anal sex.
Geting ready to start working on Smothered n Covered #4. I don't know if I can get a better cast than volume 3 with August, Sandra, Alexis Texas, Nikara, Mia Bang. That was my dream cast. But the best part is trying. On a side note I'm gonna miss Sandra. Just looking at her flawless skin in person gives me the shakes. Thanks
If Sandra really does retire this year, and no one seems to be able to properly confirm or deny this; I guess we'll have to wait for an official announcement from the lady herself, I think she should definitely get some kind of life-time acheivement award at the AVNs or any other porn award ceremonies. Nothing says romance like anal sex.