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　　Yuck. Couples kissing on the mouth are gross. And the worst is, you can't miss them: when people are about to kiss, their lips become all pink and shiny. Little Léo laughs at them, just like all the kids at the summer camp. But he has a secret he won't tell his friends: his own mouth has actually begun glistening. And, in reality, Léo desperately wants to give kissing a try.