there's a risk of bacterial infection that while not serious could be uncomfortable for a few days. water ba<x>sed lube like KY is always best
why waste a good moisturizer buy some real lube :)
Olive oil is good (sparingly as it is way slippery) as it has antibacterial qualities and grape seed oil is good too.
I don't know but I think the best sexual lubricant is grapeseed oil. Try it.