Disclaimer: Everything you know belongs to the genius that is J.K.Rowling.
A/N: Very weird, but still!
Hogwarts
September 1st, 1974.
Dumbledore had allowed Lily, Violet and Dahlia to hold a private feast in their living quarters. The house-elves had been busy all day making food for the evening, and they would also join the feast. The triplets hadn't told their friends much of what they had been doing, or much of their living quarters. They had furnished the room that was next to the kitchen to be a dining room, and to this feast it seated 11 people and three house-elves. But as they seated themselves to relax an owl arrived. It read that Peter would not attend their little feast, he had a terrible cold and had to go to Miss Pomfrit. So Lily removed a plate and then discovered that they were going to be 13 at the table. She didn't lay too much in this though and continued with the removing of the plate. Five minutes before the students would arrive to the castle Lily, Violet and Dahlia went through one of the magical doors leading down to the entrance hall of the school. Five minutes later the students arrived, some extremely wet. It wasn't raining, but Peeves was very fond of throwing water balloons.
The triplets collected the seven attending their feast and waved Peter goodbye as he headed for the Hospital Wing. They reached the statue of Rowena and Violet said: "Temporarily changed". James and Sirius looked a little disappointed at that, they had hoped to get the real password. As they entered the living room James exclaimed: "It's so neat! How do you keep it so clean? Do you have a private house-elf or something?"
"Three in fact," Violet said "Ina! Mabel! Iren! Come here, there's someone we'd like you to meet!" Three little heads looked out through the kitchen door before entering the room.
"Yes miss."
"Here's James, Sirius, Remus, Phelena, Samantha, Kathleen and Beatrice. They will probably be spending some time here."
"Hello misses and masters. Welcome to our cave. We'll get back to dinner Violet."
"Yes, we'll be coming in about a quarter. Is that alright?" The three house-elves nodded and went back into the kitchen.
"Private house-elves," Sirius whispered. "Wish I had one."
"Here's our bedrooms and bathrooms." Lily said pointing at the doors.
"On the other side we have a kitchen, a dining room, a changing room and a giant bathroom with pools and stuff..."
"Pools and stuff! What stuff?" Sirius demanded to know.
"Oh... Boards, slides... there are swimming pools, some bubble-baths, hot tubs..."
"Can we swim here sometime? Pleeease?" Sirius looked at Lily with those puppy eyes he was so good at and she could do nothing but allow them to swim there, not that she hadn't let them anyway. Then they showed them the library (They boys didn't want to stay there for long) and the second floor rooms. After that the boys raced down the stairs and when the girls entered the dining room they found the boys sitting at the table almost drooling at the food.
"Honestly," Sammy said, "You about ate the whole food cart at the train, and now you want more?" She shacked her head sadly, "Boys..."
"What's wrong with boys?" Pheelena asked fake offended tone, "They are quite charming don't you think?" Bad timing as, at the time, pieces of potato was rolling out of Sirius' mouth. The meal ended and the teenagers placed themselves in the living room talking about their holiday. Late the triplets led Becky, Kathy, Pheels and Sammy to the magical door labelled 'Gryffindore, girls, 6th year dorms'. They dragged the half-asleep boys out to the magical door labelled 'Gryffindor, boys, 6th year dorms', though Sirius looked like he really wanted to throw a whole bag of dungbombs through the door labelled 'Slytherin, boys, 6th year dorms'.