“OK, Strip,” she instructed me.
“What? Are you crazy? I am your brother,” I said with a shake in my voice. It was bad enough that she was standing in front of me in next to nothing and that I was having a hard time banishing the dirty thoughts that came to mind seeing her nipples poke into the triangles of her suit.
“Look, I know you have your boxers on. You always do. That is no different than seeing you in a bathing suit. Besides it is so hot in this costume you will die if you don’t get some clothes off,” she reasoned.
Maybe it was from drinking too much or just not really giving a damn but I realized it was a losing argument. I had just told her I would do it and there was no way she would let me out of it now. I started undressing down to my boxers. She climbed in and put her feet through the first set of legs and then her arms. She had to hold on the wall as she leaned over to put her head in the dragons head. As she let go to put her arms in I almost fell over trying to get my legs in beside hers. I finally got all the way in and put my arms through the second set of holes to flap the wings up and down.
“How the hell do we zip this thing up?” I asked her.
“There is a string that comes through the mouth,” she told me. “I can zip it up once you get all the way in.”
“I am all the way in,” I told her.
“NO… you have get closer to me it’s a very tight fit.”
I leaned forward till my crotch was pushed up against her ass. At that moment I felt the zipper being pulled up and it pushed me harder against her. We were in but I was pressed so tight against her I could feel her ass pressing against my cock.
“I don’t think I can do this,” I told her.
“Yes you can. Besides, I broke the string when I pulled the zipper closed, if we get out now it will ruin the costume. Come on lets give it a try,” she pleaded.
I was just drunk enough to think, “What the hell?” and told her ok. Walking was just as hard as I thought it would be. We had to go very slowly to keep from falling. After a little while we got in step with each other and managed to say upright. It was fun in a way; though I could not see anything at all. There was almost no light from the back but a tiny bit drifting down from the head my sister was wearing.
She would reach out and hug her friends and I would flap the big wings popping them in peoples’ faces, asses or whatever was in the way. The effect the teasing and the walking with my crotch pressed tightly against her ass was having on me caused my cock to twitch and grow. “No!” I thought to myself sternly, “I can not get a hard on with my cock pressed against my sisters ass.”
I tried to think of everything gross and disgusting in an effort to keep my cock from raising its head but between the teasing sexy voices I heard and my sister’s ass going up and down as she walked, my cock rose and there way no way I could stop it.
I knew she felt it but it did not seem to bother her. The more she walked the more her ass slipped up and down my cock. It was almost like being jacked off with a huge hand. We were getting so hot that sweat was running over both of us and it only acted like lubricant. I was getting more and more turned on and there was no way I could deny it. Ideas were rushing through my mind.