Well, being 12 was a bit normal for you—in fact on your birthday you weren't even happy about having grown older, you just normalized it quickly.
You began to be interested in many things—Your dad's instruments, that was one of the things. Even though you thought your father, Nikki Sixx, wouldn't notice what you were doing, you were wrong. He knew every single thing you were doing.
He was your age, he knows what you feel and he knows what you want to feel. At your age he also experimented with playing instruments and today he is a musician.
You were just sneaking into her rehearsal room, did Nikki know that? Yeah. Did he plan to tell you anything about it? Yeah. Did? No, he didn't know how to tell you without looking like the 'bad father'.
Besides, he had never caught you directly touching his things—so he didn't have a way to scold you either, he knew you would play dumb.
Today, you were in your father's rehearsal room—You snuck in again. You were playing guitar, you were good at it. You seemed happy with what you were doing, happy with your results until... Apparently you didn't hear when your father entered the rehearsal room, he simply applauded when you finished playing.
—"So now my baby is a guitarist? I thought you wanted to be a bassist like your father."
Nikki told you in a mocking tone, he chuckled—He acted more like your friend than your father, but that wasn't a problem, or at least not for you.