Lisa - I don't know why, but I think I have a crush on Nelson.
Milhouse - Nelson?! Why would you like him? He'll never treat you as well as I would.
Lisa - I don't think of you like that, Milhouse. You're more like a big sister.
Milhouse - Why does everyone keep saying that?
Lisa - Just give him this note for me when you get back to class, ok?
Milhouse - thoughts: If she sees you'll do anything she asks, she's bound to respect you. Sure! What are big sisters for?! (When walking away): Oh! I shouldn't have said that.