You gotta hand it to Nick and Jess -- as far as mornings after go, theirs is not so awkward. And that's saying something, given the awkward nature of their relationship (room friends!) and how awkward the two of them are about everything else.
After a three week hiatus, the gang reconvenes to tell the tales of how they lost their virginity. This is prompted by Schmidt's scheduled close encounter with Elizabeth, the college girlfriend we met last episode.
Jess realizes she is super attracted to newly responsible Nick. No, like really. She wants him bad. So much so that she shoos him out of the bathroom for no apparent reason when he comes in to do laundry.
With their 10 year anniversary of living together just around the corner, Schmidt and Nick decide to plan a party. Or rather, Schmidt does, because that's his thing and he also doesn't trust Nick so much.
"A woman cannot be in close quarters with three men and kiss one of them," Schmidt explains to Jess. "What fuels men? Competition, and sex. That's why the United Nations was born, that's why girls aren't allowed on pirate ships, and that's why there's a No Nail Oath in apartment 4D."
Jess' way of dealing with the situation is talking it out with herself, preferably with Cece in the room. Nick kissed her, but she did kiss him back, and yea, she "saw through space and time for a minute," but she doesn't like Nick.
Nick is determined to drive over to Jess' student's house and prove his theory right. Jess, hoping to dissuade him and/or be there to bail him out of jail for trespassing, joins in. This provides for a much needed Nick-Jess alone time.
On the surface, "Kids" revolves around Jess having Russell's daughter, Sarah, over to hang out and Cece dealing with a pregnancy scare. Nothing revolutionary. But this episode goes to show that these adults are really just kids themselves.