Yes

I suppose she's right I thought. I stood up slowly. I looked at my audience and realised that all the boys were now pitching small tents in their pants.

I gripped the bottom of my top and paused. The room was silent. I pulled it upwards. I dropped my top at my feet and saw that the boys tents had gotten a bit taller. They got even bigger went I reached for my skirt and let it fall to the floor next to my top.

I sat back down feeling completely exposed again. It was pretty exciting, being totally naked in front of the boys. I didn't feel so embarrassed this time, knowing my sister was naked too and seeing the boys in nothing but their boxers, it was making me slightly wet. I got an idea. As I sat down I spread my legs giving them a great view in between my legs. I also noticed that the boys were checking me out more than my sister.

"Okay, now your both suitably dressed, or rather undressed. The competition is too see who can bring themselves to orgasm first"

"You want is to masturbate?" I asked

"Yeah, race to see who can finish first, the loser has to do a forfeit"

"I…"

I herd my sister moan softly and I looked over to see that she had already began touching herself.