Not sure why this made me laugh

[Occhidiangela]

Is that pornography contains, inherently, sexual content, which may or may not contain nudity. The harder core the porn, the more nude genitalia and their mechanical interactions tend to get depicted. Soft core porn, some of which is on TV shows or in movies, does more by implication of sexual activity than by graphic depiction of piston and cylinder mechanics per hard core porn. The discussion above regarding Sarah Michelle Gellar and her hypothetical oral activities with a banana, with no nudity, is instructive. :) See also a video from about 15 years ago by The Divynls: I Touch Myself. That, sir, was soft core porn. :) So also is damned near every video made these days in the so-called music industry.

An intimate sex scene (two folks having an affair) on a TV soap opera would be soft core porn, no bared genitalia and or breasts but plenty of off angle shots of bare shoulders, backs, thighs, etc, and possibly more effective via titillation index than a standard Tracy Lord or Seka "choke and poke" film, depending on the audience.

For your pornography definition, you may want to get off the nudity focus and focus on the sexual element, or implication of sexual acitivity either depicted or implied.

Does that help clear anything up? :)