The Sybian is the most popular machines, as it gives the ultimate orgasms, because the girls have full control.
See it in action @ FuckingRobots

WARNING - ADULT CONTENT - 18+ ONLY!
Before entering this site, you must read and agree to the following terms & conditions. By accepting this agreement, I certify the following: 1) I do not find images of nude adults, engaging in explicit sexual acts or sexual materials to be offensive or objectionable. 2) I am at least 18 years of age and have the legal right to process adult material in my community. 3) I will not redistribute the material from this site to anyone. I will not permit any minor to view any material from this site, nor will I allow this material to be viewed by any person who might find such material offensive. 4) I understand the standards and laws of the community, site and computer to which I am transporting this material, and I am solely responsible for my actions. 5) If I use the services in violation of the above agreement, I understand I may be in violation of local and/or federal laws and I am solely responsible for my actions. 6) By entering this site, I will have released and discharged the providers, owners and creators of this site from any and all liability which might arise. 7) Bookmarking to a page on this server/site whereby this warning page is bypassed shall constitute an implicit acceptance of the foregoing terms herein set forth. i have read the above and I agree to the terms and conditions set forth therein. ------------------------

FuckingRobots is all about our special designed machines fucking the brains out of sexy babes

FuckingRobots fullfils your deepest desires!
As a member of FuckingRobots YOU can request which girl should be fucked by which machine in the next movies!