For Tani Smiles' First Sentence Challenge

Disclaimer: I don't own Harry Potter.

I remember with utter clarity the first great shock of my life; when I walked in on my sister and best friend going at it.

It was a Tuesday. I'd just gotten back from doing some Auror work, and was stopping by to see Harry before I went to Hermione's flat.

"Harry?" I called, opening the door to our shared flat.

"Ohh! Yes! Yes!"

Umm, what the hell? was my first thought. Then, I thought he might be cheating on Ginny; there was no way she'd have sex so soon…. Even if 'so soon' was three years after they started dating.

So, I snuck quietly towards the bedroom, where the cries got louder.

When I reached the door, I threw it open, only to be met with the sight of Ginny and Harry… Shagging.

I felt my face turn red, and sighed in relief when they didn't even notice me. So I quickly made my escape to Hermione's.

Needless to say, I've been scarred for life.

But, even though I walked in on them, she's still my little sister. She's still a baby to me. And I still tell myself everyday, she's still a virgin and she will be until she's ninety.

It's one of the only things that gets me through the day.

Don't get me wrong, if she were to date anyone, I'm glad it's Harry. But I grew up with her. We're only a year apart and the closest to each other.

I'd rather not picture my not-so-little-anymore sister shagging Harry.

I'm glad she's happy, I'm glad she's found someone to make her happy. And I'm glad that someone is Harry.

I just wish they could make each other happy in other ways. I mean, do they have to shag? They could, I don't know, play barbies or something. Anything.

And, they could at least learn to lock the door, for my sake.