Fic where Amita and Megan have lunch

[tamlover.livejournal.com]

I know I've read it, but just can't remember where. I was thinking FF.Net, but couldn't find it there.

If I'm remembering correctly, it's set second season when Amita is still a grad student. She's hungry. Doesn't have enough money to get something from the vending machine. Larry and Charlie are away, which is a shame, because either one would buy her lunch. Charlie wouldn't mind if she took a gumball, so long as she wrote down which color. Megan shows up and offers to take her to lunch. Megan wants idea on what to get Larry for his birthday. Amita brings up the same study Charlie brought up when Alan wanted to get Donna a birthday present. Megan says "marry Charlie now" or something like that, because of their math similarity.

Anyway, I mentioned the fic to someone else who wanted to read it, but then I couldn't find it or remember the title or author. Can anyone here help me out?