What he gets you for your birthday:
Ashton:
A ring. Not an engagement ring, a promise ring. As he promises to always be there for you and stick with you even when times get rough.
Michael:
A flannel shirt. He knows you love them and you always take his just because they're really comfy to wear and they go with everything. As much as you love the one he got you, you'll still always "borrow" his.
Calum:
A puppy. You're both dog lovers and you've always wanted one but your parents didn't want one as they were expensive to keep so when you got one for your birthday, you loved him even more.
Luke:
A guitar. You've always wanted to learn to play so he got you one so he can teach you and while he's on tour you can practice and show him when he gets back. He also loved the fact you could now both do duets together even if it was cheesy.