Ah yes, alcohol can always be quite the wingman. Also helps that she wants to get rid of her image of 'childlike' considering his comment when they went drinking. And...Well, what better way to prove how much of an adult you are but sex, or seducing the guy while drunk?
Great ending though. Like parents, like children, I suppose? And also, introducing him to them is always a good first step in a good relationship.
What was the name of that show about lawyers... it had one of the bosses mentioning that he liked midgets because they were just the right height for a BJ. I think it had Capt. Kirk in it?
Also looks like their drinking partners also (perhaps unconsciously) played the role of wing-men literally AND perfectly.
GOOD JOB, Nekomata-sensei.