"Mommy why do grown-ups kiss that way?"
"What way? You mean not the small kind of kiss we give to you?"
"Yes. You and daddy kiss that way, and they kiss that way in the movies. You don't like it when I try to give those types of kisses to you and daddy. You say that only grown-ups can kiss that way. Why?"
Hmmm? Any suggestions on how to explain romantic kissing to a seven year old. I'm stumped. I usually don't have a problem explaining most birds and the bees type of questions, but this, I have no idea where to go with it.