Teen pregnancy [Ashton Irwin's sister/ Luke Hemmings girlfriend]

Intro

Hello I am Mackenzie Irwin, yes Ashton is my brother, but Luke is my boyfriend. I just found out that I am 16 and pregnant with twins. How are they going to react? Luke gave me  a promise ring so he should be ok, but Ashton will freak.  He doesn't know me and Luke are together.