Its a nice film if you're on the fence about watching it. There is plenty of nudity, simulated sex, masturbation, lesbian sex (ass to ass!) some kung fu action, bald monk women, and sex while husband is sleeping in the same room. The guy also has a large penis, if you were curious.
Here is an explanation about the physics from one of the developers.
http://steamcommunity.com/app/226980/discussions/0/828938532852763695/#c828938532857578707
There are also 8 different camera angles you can choose, if that may be an issue.