Yeah

I was stunned. I stood in silence for a moment trying to think of what to do. "Yeah" I said at last.

She smiled teasing at me "well then…" she pushed herself off the wall and brushed past me, before walking into her room. I had no idea my sister could be such a tease.

Just when I was about to turn away, I saw her look back over her shoulder with a naughty smile. She stood in her doorway facing away from me and i watched in amazement as she dropped her towel.

I barely had enough time to take in the sight of her naked body and her perfect ass, before she shut her door leaving me alone in the hall.