Chapter 1: Home Alone

“OK kids” Dad announced at breakfast on Sunday morning. “Mum and I are going to visit Aunt Katie and Uncle Jim next weekend. We will be off early on Saturday and will be back Sunday late afternoon. Mark, you’re in charge. Carly behave and do what your big brother tells you. OK”

Carly was just 14 and did not like the idea of her big brother Mark telling her what to do, even though he was 18. But she thought she might be able to get away with more fun than with her parents around.

“OK Dad” Carly replied. “Have a nice time!”

“Sure” Mark added, “but I hope I get loads of credit looking after my horrible little sister!”

She stuck her tongue out but he gave her a teasing grin.

After their parents left for work, Mark said “Carly, if you want to go to your friend Samantha’s for a sleep over, that would be cool.”

“So that you can get rid of me and have an orgy!” Carly exclaimed.

“I would like to have a few friends over for a swim and a couple of drinks, but they are all a lot older than you so you would probably be bored” he replied.

“Not if you invited Toby” she replied. Carly had had a crush on Mark’s friend since she was 8. He was the only one of Mark’s friends who said more than “Hi!” to her. He chatted to her and even teased her a bit sometimes.

“He’s 17 Carly! Much too old for you” Mark replied. “Anyway, he’s pissed off at the moment because his girlfriend cheated on him with three guys, so he probably won’t want to come.”

“Maybe I could cheer him up!” Carly replied, seeing an opportunity.

Ignoring her, Mark suggested, hopefully “How about I give you some money to go shopping with Sam for a nice party dress and then have a sleepover?”

“No point in having a party dress with no party to go to” she replied.

“What do I need to do to have a nice evening with a few friends?” he asked, exasperated.

“Simple! Just invite me to join in!” Carly replied with a grin.

They then had to hurry off to school.

At lunch, Mark invited 3 of his friends and their girlfriends to his house on the Saturday afternoon for swimming in their pool then some music and a few drinks in the evening. The pool was a nice temperature and the current heatwave was forecast to continue.

“Would you like to come too, Toby?” Mark asked, being polite.

“Thanks, but it would be a bit depressing on my own” Toby replied.

Mark had an idea. “My little sister Carly is trying to spoil the party, I can’t get rid of her for the night. She’s only 14 but she’s had a crush on you since she was 8. Would you be a mate and make sure she’s er ... distracted?”

“She’s super cute, I really like her and she’s getting to be quite hot, but it wouldn’t be right to make out with your little sister” Toby replied. What he did not say was that he had been lusting after her since she was 8 too.

“Well, she’s 14 now so if you want to make out with my sister, I don’t have a problem” Mark said. “I’m pretty sure she’s still a virgin but she has to grow up sometime and I would be more than happy if you wanted to help her, rather than some random boy who picks her up at a party”

“In that case, I’d love to come!” Toby replied with a smile. Had Mark just given him permission to seduce his baby sister?

“I know you’ll stop if she asks you to” Mark said.

“Of course I will. And if she doesn’t?” Toby asked.

“That’s up to her” Mark replied.

That evening after dinner, Mark and Carly went to their rooms to do their homework. A while later, Mark knocked on Carly’s bedroom door.

“Come in!” Carly said, thankful for the interruption to her Maths homework.

Mark entered her room.

“Would you be OK having Toby as your date on Saturday?” he asked.

She jumped up from her chair and flew over to hug and kiss him.

“You are the best big brother, ever!” she screamed.

“I’m not going to be there all the time watching you, so if he tries to get into your panties, you’re on your own” he said, still wondering if this was a good idea.

“I’ll just have to keep hold of my panties then!” she replied.

“OK. Just make that plain to Toby. If you tell him to stop, I’m sure he will” Mark advised. “You might see some couples having sex and even swapping, so you must promise you will never tell anyone about what happens and you must also promise never to go crying to Mum if something happens you’re upset about, come to me instead.” Mark demanded.

“It sounds like it could be wild, but I promise to be a big girl and keep my mouth shut” Carly replied.