Two websites, Curiosity.com and SexSmartFilms.com, have several educational videos related to human sexuality and reproduction. Curiosity.com's films are focused solely on scientific studies, while SexSmartFilms.com offers over 400 films on a wide variety of sex-related subjects.
The video series called "Why is Sex Fun? | Orgasms and Reproduction" on Curiosity.com presents several videos that feature scientific research regarding human sexuality. The videos are free to view and each is less than five minutes in length. SexSmartFilms.com offers a much wider variety of videos. The films cost money to view, either per film or via a paid subscription to the site. However, the website has many categories to choose from, such as teens, aging, disability, birth control and gender identity.