I have not and don't think I've done 20 years younger either. Maybe 10 younger, 5 older? Generational differences squick me right out, I am somehow more appealing to guys younger than me (always been that way I don't know why) but at this point some of those guys look like kids to me.

I don't have problems with lubrication, but gamed it by starting out very juicy and also I use the estrogen cream to keep healthy down there, it really helps.