I consider it sex, no question. Some local high school students in my town don't though. 2 years ago a bunch of them got into trouble for giving blow jobs in the back of the bus, when questioned about it, they all just said that it wasn't sex, it was just kissing!! A good try on their part, but they all still got into some serious trouble.
Anything where either party's genitals are involved in a pleasurable and mutually consensual context is sex in my opinion. I know people with even more stringent definitions. I'm a lesbian so penetration isn't always involved in every sexual encounter.
I consider it sex, but how many of you out there agree or disagree?
I would not consider it sex, but I would consider it a sexual activity. Just like dry humping with your clothes on or watching porn together and masturbating is a sexual action without being actual sex.
All sex is sex. Penis in vagina sex is only a type of sex. It is not more "real" than any form of non-penetrative sex. Its completely unfair to frame sexuality in these terms since it basically deems that sex between two men, or sex between two women is not "real sex". For heterosexual and homosexual couples alike oral sex is just as real as any form of penetrative sex. I find it incredibly beautiful and intimate (sometimes even more so then penetrative sex) and so I definitely consider it to be real sex.