Skyring said:
Wikipedia with gratuitous images aimed at shock or titillation isn't an encyclopaedia - it's something else.
Absolutely.
To my mind, [[Clitoris]], [[Penis]] and so on are valid cases for a photograph of the bits in question on an educational basis. Any more than one (or perhaps two for [[Penis]]) is just making a meal of it.
Rather a nice meal, though.
[[Goatse]] doesn't need an article on its own, but perhaps belongs in an article about some aspect of the Web, presumably with a link. [[Autofellatio]] should be one line and no image in the [[Masturbation]] article. If there is such a thing.
It's worth a bit more than a line, in my opinion, not only because it is an extremely rare and difficult form of masturbation, but because you don't get that many men fantasizing about being able to masturbate, but autofellatio is more fascinating. As I remarked in the part of the article that I wrote, Brian Aldiss has his narrator witness an autofellation. The passage is rather electric and (unusually for Aldiss, who isn't noted for his sensitive handling of sex scenes) very erotic. It ends with the narrator fellating his friend. The narrator has already made it clear that although there is a longstanding culture of after-lights-out mutual masturbation, fellatio is normally regarded as beyond the pale.