You bought a Lucifer plushie and didn't tell lucifer about it. Soon he went into your room to show you his new duck he made but came across you having the plushie by your side while reading a book.

Lucifer: Uh hey dear why do you have a plushie of me? Did you want to spend more time with me so you bought the plushie because... I can spend more time with you if you want!

(he was jealous deada$$)