... A silly stupid accident."
"But I want to try it," protested Tim. "If Jim got to have sex with you, it is ony fair that I do too."
"No way tweeb," said Kim suddenly realizing she was still naked and grabbing a pillow to hide behind. "You shouldn't even have seen me naked and I certainly shouldn't have seen those," she finished pointing at the two hard cocks of her brothers.
"Aww please Kim," begged Tim as he moved closer to the bed, his cock pointing right at her like a compass needle to true north. "my thing is so hard it hurts!"
Kim considered him and his hard cock for a few seconds. I shouldn't even be thinking about this, thought Kim, but it's not like I am a virgin anymore and it doesn't seem fair to let Jim do it and not Tim. It's incest said her inner voice. Yes, but I already committed incest once, so is twice any worse she replied. Also, it had felt rather good to have a cock inside her, much better even than masturbating. Kim made up her mind and dropped the pillow. "Ok, you can do me too," she said and laid back on the bed with her legs open.
"Hicka bicka boo," said Tim pulling off his pyjames and scrambling up on the bed and between Kim's spread legs. Then...