Remember the terrible sex ed videos you watched in school? They may not have been as bad as the ones John Oliver showed last night. In one particularly cringe-worthy PSA (skip to the 12:57 mark), a non-virgin on her wedding night is compared to a dirty shoe. Yikes. Last Week Tonight decided to make their own, more realistic sex ed video for today’s sexually frustrated teens. Jump to the 17:53 mark to hear Nick Offerman, Jack McBrayer, and more celebrities talk about genitals. It’s very informative!