Is it worth having sex on first date.

As long as you practice safe sex. There are plenty of sexual no-risk activities you can do without risking anything, and as long as you climax, I'd say it was a pretty good date.

Online sex is the most safe sex, I think.

Vamp, you have to microwave it first. Butters in the fridge

Depending on if that bagel and how flaky/buttery it is might want to consider using it. But in all seriousness masturbation is part of sexual act going by the webster definition. "erotic stimulation especially of one's own genital organs commonly resulting in orgasm and achieved by manual or other bodily contact exclusive of sexual intercourse, by instrumental manipulation, occasionally by sexual fantasies, or by various combinations of these agencies"

Masturbation is very different from sex since is a stimulation of sexual act. Although this and that is very closely related but unfortunately we go by dictionary, we cannot argue what dictionary say.