Hannah: (looking at Ains wearing her sunglasses and new hat) You look sexy, Ainser! Doesn't she look sexy Mother?
Mother: (thinking "I need to talk to Matt about his love of Simpsons") No, not really. Sexy is a term you use for adults, not kids. Are you trying to say she looks pretty?
H: Yes. But pretty's boring.
M: How about 'cute'?
H: OK. Ainser, you look cute.
H: You look sexy.
M: Well, thank you sweetie.
I'm still tweaking this 'how to define' thing. I should have said "It's a term *adults* use for other adults and maybe you shouldn't watch Simpsons so much." But I just said thank you.