People sext. They take pics of their naughty bits and send them to each other. Boudoir photography has been a thing since cameras were invented. Basically, we're all a bunch of naughty, sex-crazed heathens.
We're all apparently violating federal law as well. Section 2257 of Title 18 of the U.S. Code, enacted to combat child pornography, requires anyone who produces sexually explicit materials to keep records of the name and birthdate of every performer in a given work, include a statement about where the records are stored, and make the records available to the attorney general for inspection on demand.
Except, there's no exception for home movies.