In quaint 60s parlance, oral sex.
Old swinger husband: Is he always that quick on the trigger?
Young swinger wife: Well, it's been known to happen...
Old swinger husband: Well, don't let it worry you. Wait till you meet Tom Harris. He comes when you look at him.
Old swinger wife: Oh, but that don't matter, hon. He'll give you French culture till the cows come home.