Underage Sorts of Sibling Rivalry

I found her in the bedroom,
cheeks flushed and eyes closed,
as his mouth slid over skin,
and downwards…

Softly,
softly she moaned.

I shut the door as quickly as I could,
spilling my beer on the carpet,
and trying to forget the look in her eye
as over my brother's shoulder,
she smirked at me.