By now she could have asked me to do anything and I would have done it.
"Anything you want."
"I like being naked as you can probably tell and I thought if you wouldn't mind I'd like to just be like this whenever I can. I know it will make you hard but please don't take your thing out while I'm around, that just wouldn't be right. Besides I'm not into guys to much right now so looking at your thing wouldn't really do anything for me."
Any thoughts I had about doing anything with my sister just went out the window. She wasn't into guys, didn't want to see me naked, just wanted to walk around naked and drive me nuts.
For the next couple of days she stayed mostly in her room, doing what I had no idea. Friday night mom and dad went out of town to visit some friends and said they'd be back late Sunday afternoon. Twenty minutes after they left Beth undressed in the kitchen and said she wanted me to do something for her.
"Would you suck on my tits for awhile if I sat on your lap"
That caught me completely by surprise but before I could say or do anything she was on my lap and pushing her tits against my face. Her nipples felt like little hard marbles as I licked and sucked them and while I did that she was grinding her crotch across my jeans.
"This isn't working, you have to eat me."