Casey and Derek were bored.

Very bored.

The rest of the family were out at the zoo for the day and Casey and Derek had been left alone at home.

For once in their lives they were both incredibly bored.

Nothing in the house would entertain them. They had tried to watch TV but there was nothing interesting to watch. Casey had tried to read and work but she got very distracted. Derek had tried to concentrate on his games but they were none of them particularly enlightening. All of their friends were out doing other things.

"Let's go for a walk, Derek." Casey suggested.

"Sure. Beats staying here and not doing anything." He said without much enthusiasm.

"Meet me back here in ten minutes then."

They naturally had an argument as to where they should go and so they decided on a compromise. They would go for a walk in the woods.

Surprisingly it clouded up incredibly quickly and therefore got very dark very quickly.

And they got lost.

And it started to rain.

In fact, they were suddenly caught in a huge thunderstorm.

"Great! Now what do we do?" Derek asked Casey.

"Look! There's a hut. Let's take shelter there until the storm stops. Then we can try and find our way home."

"Good plan, Einstein. Now let's get out of this rain before my hair frizzes."

"You're such a girl, Derek."

They got into the hut and then they realised how dark it was. The hut had no electricity.

He sat down and she sat opposite him. They settled down for a long wait.

Later.

"Man, I am so bored! I thought we went out for a walk to not get bored?" Derek moaned.

"I know. But we will have to make the most of it."

"Do you ever get gloomy? I mean, nothing ever dampens your spirit does it?"

"You do sometimes. I either hate you with a vengeance or lo-like you as a friend and brother."

Phew! That was close…too close! She thought.

"Do you really hate me?" he looked both curious and a little upset at the same time.

"Sometimes. You do annoy the hell out of me. Why do you do that?"

"I'm not really sure. You give some great reactions and you seem too nice to respond with another prank. Although, I will say you can be pretty feisty in our fights."

"Well I'm not around to see you take full control of the house. And thank you." She spoke graciously but she didn't look happy.

She was quiet for a while and Derek studied her face.

"What's up?"

"Can I ask you something? Yes I know I just did, but I have another question. And I want the truth here. No being Mr Cool. There's no one here but us. I'm looking for the real Derek. Not the Derek that ignores me at school unless he wants something. Okay here goes. What do you really feel about me? Do you hate me? Because that's the message I'm getting from you at the moment."

"I don't hate you, far from it. In fact you're the best person I have ever met. Remember what I said about you being perfect? Well I think you are. You are unlike any other woman I have ever met and were it not for mitigating circumstances I could see us getting together. The only thing that is stopping me from doing anything about the way I feel about you is by reminding myself that you're my sister."

"Yeah, stepsister. We aren't related by blood. The only way we're related is by the fact that my mum married your dad."

He looked at her for a moment and then leant forwards and kissed her on the lips.

OH MY GOD! Derek is KISSING me! This is the best day of my life! Mmm, he tastes so good. She thought gleefully.

He deepened the kiss and Casey now understood why he had so many girlfriends. He was a really good kisser.

Then he broke the kiss and she opened her eyes in surprise. He was staring at her.

"That was a mistake, wasn't it? I shouldn't have done that. Now I've ruined everything! I'm gonna go now."

He jumped up and ran out of the hut into the rain.

"But Derek! We're both lost." She called after him from the doorway of the hut.

He had already disappeared.

She slumped to the ground and started to cry. She didn't understand what had happened. A few minutes ago she was on top of the world. Now she was alone, lost, in a small hut with the thunderstorm buffeting around outside.

She sat there for a moment before pulling herself together. Turning she realised that Derek had forgotten his bag.

She tried to retrace her steps back through the woods and managed fairly well. Before long she had found the path again.

Derek meanwhile had found a short way back to the house and as he walked into his home he realised that his family were back from the zoo. Uh-oh.

"Where have you been? And where's Casey?"

"Isn't she back yet? I thought she would get back long before I would."

Before George could start shouting at him the front door slammed.

Casey stood there, soaked to the skin, clutching both the bags and looking very angry.

"DEREK! How dare you leave me alone out there!"

She thrust his bag into his chest and then slapped him round the face. The rest of the family gasped, they had never seen her so angry before.

She looked a right state. She was wet and her hair was dripping. Her eyes were red from crying and her teeth chattered. Her white t-shirt was almost completely see-through and her jeans were plastered to her legs.

She was shouting at Derek, who was visibly cowering from her wrath. The saying goes hell hath no fury like a woman scorned and believe me Derek felt like he would rather take a holiday in hell than be faced with this.

Suddenly she stopped shouting.

With tears streaming down her face she bolted for the stairs.