Short Stories by Hope/A Dark and Stormy Night
Billy woke up slowly. It was still dark, but at least the storm had passed over, even though he could still hear rain pattering on the window pane. He stretched out under the duvet and realised that he wasn't alone in his bed.
Susan was seven years old, three years younger than Billy, and for most of the time they got on together pretty well. Their mother could be heard sometimes, thanking Og that they didn't squabble and fight like some other siblings. She was laying curled up with her back to him and in the dim light, all he could see was her dark hair.
It wasn't unusual for Susan to sneak into his bed in a storm, especially when thunder and lightning crashed and flashed around the house. They would lay and count the seconds to see how far away it was. If he was honest, Billy quite liked having someone to snuggle up with, although he would never admit it.
Billy yawned, rolled over and wriggled up close behind his sister and put his arm across to pull her tight into a spoon. His intention was to go back to sleep, but he gradually became aware of two things: His cock was getting stiff, and it was pressed right against Susan's bum.
The two children were not entirely innocent. Back in the summer, up in the tree house Daddy had built, they had played games like Strip Jack Naked which usually ended up with them looking at the parts of their bodies that were usually kept covered. No touching though, by some unspoken agreement, although Billy would sometimes amuse her by rubbing his stiff cock, before he came over all embarrassed and covered himself up. In private, he had been masturbating for a while and recently had even made some boycum when he climaxed.
Like most brothers, he assumed that Susan knew nothing about sex. However, unbeknown to him, Susan and her BFF, Mary had been experimenting together with the aid of a magazine that Mary stole from the stack under her teenage brother's bed. They had both learned the mechanics of sex and knew very well what went where, although some of the positions in the pictures looked pretty uncomfortable. Now, she was laying snuggled against her brother, pretending to be asleep, but well aware that the hard thing pressed against her bottom was his cock. She wanted to do more, but how to do it without scaring him off?
After a while, Billy decided that he had to get up for a pee. He slipped out of bed as quietly as he could and crossed the landing to the bathroom. Once there, he had to deal with the problem of aiming with a stiff cock, but he eventually managed it. However, when he went to pull his pyjamas up, he realised that he had dribbled on them. He didn't want to put them back on, so he dropped them in the laundry basket and tip-toed back into the bedroom half naked, with his semi-hard cock leading the way.
This time, when Billy snuggled up against his sister's back he discovered that her nightie had rucked up and his cock was now sandwiched between his belly and her bare back. When he left her alone, Susan had though about how she might encourage him to take things a bit further and pulled her nightie up to bare her bottom. She was surprised, but not unhappy, when she realised that he too was naked from the waist down.
Billy still assumed that Susan was asleep and he wondered how far he dared go. His cock was trapped between his belly and her back, but he thought that if he pulled away a little, he might be able to get it between her thighs. He eased his hips back and reached down to get hold of his stiff cock. Then he moved forward again, this time, feeding it between the cheeks of her bum. Then he put his arm around her to hold her close while he enjoyed the sensation of having his cock pressed (he assumed) against his sister's pussy.
They both lay there for ages, not moving until Susan caught hold of the hand that was on her chest and moved it so that it was underneath her nightie and right over a stiff nipple. At the same time she began moving her hips to make Billy's cock rub on her pussy. Neither of them said anything as they both enjoyed the feeling.