Ko-san said:
If you got a handjob from your partner before marriage, would you consider that premarital sex? If you used a dildo/onahole while your partner kissed you, would you consider that sex? I wouldn't.Scientifically, sex is short for sexual intercourse which includes penetration through vaginal, anal or oral stimulation with the partner's genitalia. Other forms of sexual actvity may sometimes be called "outercourse" or foreplay but are not considered "real sex".
We're just humble peasants here... we tend to follow a looser definition of such things.
Updated by anonymous