The use of intelligent and interesting fact-filled conversation to entice a member of the opposite sex. When used effectively, potential partners will only stop the conversant when they go in for a kiss.
His mental lubrication was so effective that their discussion of war strategy and post-modern architecture got his girlfriend so horny he didn't even get a chance to tell her about steam locomotives from the 1880s.
social lubrication takes place when two or more people get together and have a few drinks and things start to flow much easier than without..drops the inhibitions
The two couples were experiencing social lubrication in the hot tub after many margaritas when the blood started running to lower extremities...