Watch Sexteens for Free: How to Stream the Movie Online at 123Movies. . This Spanish-language short was made using stop-motion animation and features very simple sets and characters. However, despite the relatively low budget, the film turns out to be a very effective way to teach kids about the dangers of unprotected sex. The film begins with three teenage girl dolls sitting on a bench. Without using actual words but sort of a Sims-type speech ("Bla, bla, bla"), the first girl describes her perfect man. Then, suddenly, he appears---as does a bed...