Several quick strokes of the lash as foreplay? (9,4)
I believe the answer is:
butterfly kiss
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for butterfly kiss that I've seen before include "Fluttering show of affection?" , "Caress with one's eyelashes - UK best, firstly (anag)" , "Act of caressing someone with the eyelashes" .)