By logic, I mean really...
Also vouching for:
"Anal"--> "Sex" (Justified by the fact that there is also an "Anal masturbation" tag)
"Fellatio" --> "Sex"
"Cunnilingus" --> "Sex"
Fellatio and Cunnilingus might not be doable, though(At least without a fair bit of cleanup). I've noticed that a lot of posts with "Autofellatio" and/or "Autocunnilingus" also have Fellatio and/or Cunnilingus tags, but would be considered masturbation rather than sex.
Opinions? Yay or nay?
Updated by user 26745