The Party Group - Cover

The Party Group

Copyright© 2025 by Dionysos

Chapter 1: A Sleepover and an Invitation

Coming of Age Sex Story: Chapter 1: A Sleepover and an Invitation - Mia and Tilly were both innocent 14-year-olds, until they met Brett and Nick who introduced them to their swinging party group.

Caution: This Coming of Age Sex Story contains strong sexual content, including mt/ft   ft/ft   Romantic   Sharing   Swinging   Cream Pie   First   Oral Sex  

Mia and Tilly were both just 14 and best friends since they could remember. Mia was tall and slim with a pretty, angelic face, long blond hair and sparkly blue eyes. She had a nicely developing figure with perky 32A boobs, rarely constrained by a bra, a tiny waist, almost flat stomach, pronounced hips and a sexy little bottom with long, shapely legs, courtesy of her many sports. She played soccer and volleyball in the winter with tennis, athletics and surfing during the summer. Swimming kept her fit throughout the year. However, she was quite shy, especially around boys which was probably made worse because she went to an all-girls school and had little contact with the opposite sex.

Tilly was just a little shorter, also pretty but with long dark curly hair, currently with ginger highlights. She had hazel eyes, usually with the hint of a mischievous grin and a few freckles around her nose. Her body was a little more developed, needing a 34B bra which she considered optional, except for sports. She also had a slim waist, although her hips were a little more pronounced and her bum was fast developing into a sexy bubble-butt. She was also in the same sports teams as her friend, and they regularly surfed together. Although she attended the same girls’ school as Mia, she had an older cousin, Brett who she often played with when she was younger, so she was much more confident with boys than her friend Mia. However, she had not seen much of Brett over the past couple of years as their parents had fallen out.

Mia and Tilly’s parents had met at uni and had remained friends, together with two other couples and they still met up with often. Mia’s parents were both uni lecturers he in Maths and her in English. They lived in South Curl Curl, the second bay north after Manly on Sydney’s Northern Beaches and were a five-minute walk to the beach.

Tilly’s parents were both in finance, he was an Investment Manager with a major bank and his wife worked in Forex. While they were both successful, they started work early and finished late. Initially, Tilly had a nanny and later an au-pair to look after her while her parents were at work but since Tilly started secondary school, she was able to get herself around using the excellent Sydney bus services. They lived only a couple of minutes walk from Mia, but in a much larger house with a pool and even a tennis court.

Ever since Mia and Tilly could remember, their parents met up with their Uni friends about once a month and the girls were looked after by Tilly’s nanny and

later au-pair. Sometimes their parents met up with their friends at Mia’s house, in which case the girls were shipped off to Tilly’s and vice versa. Their other Uni friends lived south of Sydney, so that Mia and Tilly’s parents stayed overnight when it was their friends turn to host the get-together. Regardless of their parents’ arrangements, Mia and Tilly would sleepover at one house or the other. Both girls had a queen-sized bed specifically for that purpose. As they got older, both girls were offered the alternative of two single beds in their rooms, but both had declined.

The first time the parents were having a ‘get-together’ with their Uni friends after the au-pair had left, they had a problem with what to do with the girls.

Tilly provided the answer. “Mia and I are both 14 and perfectly capable of looking after ourselves. Besides, you will only be a couple of minutes down the road.”

After a chat with Mia’s parents, Tilly’s mum said ‘OK, you can stay on your own, without a babysitter. Just two rules. One, you don’t answer the door to anyone and two, if anyone approaches the door or rings the bell, you call us.”

The following Saturday, after lunch, Tilly wandered along to Mia’s house with her overnight bag and Mia’s parents left late in the afternoon to walk along to Tilly’s house, down the road. Tilly and Mia grinned at each other as they left.

“Right!” Tilly exclaimed, “get the booze out, phone the boys and let’s party!”

“You wish!” Mia laughed. “First my parents keep the booze locked away, second we don’t know any hot boys and even if we did, if my dad found out, I’d be grounded till forever!”

“Pity, I’m in the mood for an orgy.”

“In your dreams!” Mia replied.

“Yes, but even in my dreams I’m missing a vital ingredient.”

“A big hard cock!” Mia laughed. “You’ll just have to be satisfied with my fingers.”

“OK. You are pretty good with them” Tilly replied, joining in the laughter.

After they had pizzas for dinner, followed by strawberries and ice-cream, the girls went upstairs to brush their teeth and change into their nightwear which consisted of oversized t-shirts and panties.

“You need to get some sexier panties than those for when boys see them” Tilly said. Mia was wearing plain, little-girl white cotton panties.

“They’re comfy and I’m not planning to let any boys see them!”

They watched a dance movie followed by a teen romantic drama with a few sex scenes which got them both feeling randy. As it finished, Tilly leaned over and gave Mia a kiss on her lips as she had done many times before. This soon became quite passionate as tongues became involved and led to boobs being massaged with much moaning. It was not long before Tilly’s hand strayed down to Mia’s flat stomach and under the waistband of her panties to start playing with her pussy. Mia automatically spread her legs to give her friend better access and was soon rewarded by a finger sliding between her wet pussy lips and into her hot little vagina.

Mia gasped. “That feels so good, Tilly!”

Tilly smiled, introduced a second finger and then started rubbing Mia’s clit hood with her thumb, causing a momentary flinch and a little squeak.

“That feels even better!” Mia exclaimed, her voice an octave higher.

Tilly giggled and started thrusting her fingers in and out of Mia’s dilating vagina. It was not long before Mia could feel her orgasm approaching. She pinched an erect nipple, squealed and arched her back, as the orgasm spread from deep within her.

As she was coming down, she murmured “Soooo good!” and her breathing started returning to normal.

Tilly pulled her own panties down and demanded “My turn!”

Mia grinned and repaid her friend with an equally good orgasm. After she had recovered, the girls washed their hands and went into the kitchen to get snacks and drinks. Then they went upstairs, removed the odd item of clothing still on and giggled as they both got naked into Mia’s bed.

 
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