http://aromantic.i2p/What-even-is-sex.html
One might have noticed that I have actively not included the
mandatory use of genitals, just that it has to be some sort of physical
interaction. As you might have guess by bringing it up, this was on
purpose, as I would not tell anyone, who thought to be having sex, that it wasn’t
really sex, if you haven’t touched any genitals.