I would like to contribute my experience as I have taken a fair few videos in the past few months.
There are several girls who I regularly visit and do allow videos (all for an extra fee). Sometimes the fees vary from $300 to $800 more on top of what you pay. In most cases the girls are still reluctant to show their faces. So there are two ways around it, they will either wear an eye mask or you can shoot but minus the face and they will check the video in the end.
The other trick I have learn is that if you say you share cuts of the video and / or the stills with them, they can use it for advertisement and it helps to boost their business!
So here is a list of girls that has allowed me to take videos:
1. Cherry (Jordan)
http://go141.com/en/A41900-Jorda ... ?ref=Search(region) - allows full body and face video. I have done several with her with the money shot. Usually around $1,100 including video
2. Lam Lam (Mongkok)
http://go141.com/en/A33086-MK-Massage-LamLam.html - footjob specialist (doesn't do full service), allows video but no facial shot, I usually pay her $800-900 per session. My pictures is currently featured on some of her blogs!
3. Emley (Tsim Sha Tsui)
http://go141.com/en/A63419-TST-1 ... nner+(Go141+header) - full video allowed but need to wear eye mask, I've have done a full hour session with her with the mistress holding the phone doing all the camera work, if you hold the camera yourself it is $1,600, otherwise if you ask the other mistress to hold it for you it will be $400 more
4. Kiss Me Baby (Shum Shui Po)
http://go141.com/en/A66948-SSP-M ... tar+(flower+banner) - allows video full service but again she wears an eye mask. But her speciality is squirting so I have got a few videos of us in action and she is squirting at the same time. Expensive as video all inclusive is $2,000
5. Yo Yo (Causeway Bay)
http://go141.com/en/A46297-CB-14 ... Search(bldlocation) - allows video full service including facial shot, I have done videos with her including the money shot COF. Expensive though $2,000
Then from time to time there are some honey girls that will allow video, some do it for free and some you just ask and offer them a few hundred more.
The most important thing is ask, if they allow then happy shooting (in many ways literally!), if not don't make the girls feel uncomfortable and just carry on the session. The key is always ask, be nice and have fun!