Siccing Tohru on Cloud. Because it's just as easy to make two bento as one, easier in fact because there's fewer leftovers to think of something to do with. And she'll probably get them matching boxes to boot.
Seph: Mock me now, will you? I have more weapons where this one came from. Cloud: *staring jaundicedly at his little pink lunchbox* You've got to be bluffing. I haven't got long enough hair to put into bows, after all. Seph: O ye of little faith.
*two days later, after Tohru has taken little pink and gold beribboned chocobo barrettes to Cloud's hair to keep it from falling into his eyes while he's fighting*
Seph: No, seriously, stop now. You don't want me to show you the next weapon in her arsenal. Cloud: *blinking* wait, there's MORE? Seph: She's been living with Aeris for SIX MONTHS. Cloud: (remembering the Purple Satin Dress, and the tiara, and the underwear) ...oh gods.