But is that really "having sex"? I know we had the discussion of what constitutes sex during the Clinton years but still, I feel like anything that doesn't at least include physical stimulation of some sort (in the same location) isn't really having sex. "Sexting" is more like flirting or "dirty talk".

I wouldn't consider phone sex (to go back to previous years) the same as having sex. It's like leaving a sexy note in your lover's or spouse's pocket to find at work or calling them up at lunch to ask them to guess what you're wearing.

It's definitely on the spectrum of intimate activities but if I've only had sexy video-call time or sexy Snapchat exchanges with someone (but not actually participated in anything in person) I would definitely not consider myself to have had sex with them.