Nell gets pulled into an undercover operation. She'll try to make the best of it. Callen/Nell

It sneaks up on you, usually when you aren't looking. Dash/Ingrid

NCIS updates their training guidelines and Granger decides to oversee a practice sparring session, which goes…about as well as can be expected. Callen/Nell

Felicity falls ill, but it might be the best thing that's ever happened to her. Oliver/Felicity

Change happens slowly, by degrees. Once they notice, it's already done. Reese/Root