Main Page | See live article | Alphabetical index Penis captivus is a possible urban legend describing an event that allegedly happens in rare instances during heterosexual intercourse when the muscles in the vagina clamp down on the penis much more firmly than usual, making it impossible for the penis to withdraw from the vagina regardless of erection status. The first report of the penis captivus sexual phenomenon can be found in an 1884 article in the journal, The Philadelphia Medical News. The article was later discovered to be a hoax. Penis captivus should not be confused with the real condition of vaginismus. Penis captivus in popular culture Mentioned in the 1998 film, Urban Legend. Mentioned in the Jackie Collins novel, Hollywood Wives. External links The article and sources cited at this Snopes.com website. This article is a stub. You can help Wikipedia by fixing it. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.