Cardcaptor Sakura - Season 3 Episode 5 Sakura and the Big Stuffed Doll

Several people at school have started making their own teddy bears to give to their loved ones, while Eriol helps Sakura make her bear for Yukito, secretly enchanting one of its ears. Syaoran, who also has feelings for Yukito and has made his own bear, begins falling in love with Sakura as well. Yue approaches the confused Syaoran and tells him that the reason he seems to be in love with Yukito is that he, having descended from Clow Reed, feels an attraction to the moon powers Yue emits as a creation of Clow. That night, Sakura gives Yukito the bear, only to see it grow in size in response to Eriol's magic.