I'm sure you can find it with a google search + safesearch moderation off.Has anyone else sucked themselves off to completion and swallowed?
On another note, according to Dan Savage the "sexpert", cum upsets some people's stomachs and can even cause explosive diarrhea.
I would also imagine that if something taste nasty, or the texture turns your off, you may not want to swallow it. Even if you like the taste you may not want to swallow it.
I think I even recall Mila mentioning in a thread she no longer does SW because it upsets her tummy.