I've asked around and some people say sex = PIV or PIA sexual intercourse only.
Most (maybe all!) lesbian women say very firmly that sex = non-PIV intimate activity.
Some people class 'sex' as oral or PIV/A.
When you hear or read that someone has had sex, what does that imply to you?
I'm a writer and trying to get an idea of the general consensus to see how my words are being interpreted by most people.