This topic is obviously one that's outside the realm of safe(r) sex in the Hobby but it's still one that I hope can generate some discussion.
An former girlfriend detested lubes. She was usually plenty wet but when some lubrication was necessary she'd simply spit on my my cock when it was going in her pussy and ask me to spit on her asshole and cock when she wanted anal. She also got aroused from the fact that it was spit being used. I found the whole concept and practice very arousing; especially when I was providing her with DATY from behind and would suddenly spit a wad on her asshole and work it in. She knew immediately what was on my mind.
Am I a dinosaur or is this a more common practice than I realize?