The Lemon Tree

Our family's so excited, come out back and you will see,
we have ten big juicy lemons growing in our Lemon tree.
In ten day's time we'll pick them, as they're still too green to squeeze.
Then we're going to use them in our favourite recipes.

I want lemonade and lemon tarts and lemon pie.
My sister said it's lemon curd she really wants to try.
My mother wants some lemon butter to spread upon her toast.
Lemon juice on pancakes is what my dad said he likes the most.

Someone is stealing lemons from the lemon tree every night. Who could the thief be