Hours passed as the siblings fooled around, switching between sex and cuddling. Now, they both relaxed next to each other in one of the beds.
"Are you hungry?" Julie asked him. "I am very hungry."
"Yeah, I haven't eaten since morning," Jason replied.
"Let's go out and eat something, and maybe then after that, we could hit the clubs, well we could if we were old enough."
"Are you saying we should change back?" Jason asked, breaking character for the first time in hours.
"Maybe." Julie answered. "Or, we could stay siblings. Before, I've always wanted a brother or sister, so I enjoy this."
"It's always only childs that are into incests." Jason teased.
"Well, I'm not an only child," Julie joked. "Anyways, how about you go 21, and I go 24, leaving the age gap the same. I like being the older sister," she smiled.
"Alright." Jason focused.
He felt himself stretch and grow taller again. He packed on muscle again as he returned to being a full adult.
The siblings stood up. Jason enjoyed how he was again taller than Julie, after sharing her height as a 16 year old. Her changes were comparatively minor. She looked a bit older, going from 19 to 24, but there weren't any significant differences to note.
They left the hotel room, and went for something to eat.
…
Some time later, they were done eating, having dined at a pretty decent seafood place. Julie had sushi and Jason tried the sautéed flounder. Both of them had a generous amount of white wine, and were both a little tipsy already.
They were now looking for a place to get drunk and dance.
"Do you know a place?" Jason asked Julie.
"Yeah, I think the bar I'm thinking of is right around there."
They walked a bit, and then they arrived there. There was a line, but it seemed to move at a decent pace. They stood and waited until they got to enter.
The bar was dimly lit and with decently loud music, being something between a bar and a dance club. It was filled with people around Jason's current age, just old enough to drink, plenty of them looking sloshed already. Starting out, the siblings ordered a beer each.
Some drinks later, Jason was in the middle of the dance floor, moving along with the music.
As he was dancing, one girl dancing caught his eyes. She was a short brunette with absolutely massive breasts, they almost looked to fall out her top as she enthusiastically danced.
Jason danced next to her. He caught her checking him out. They looked at eachother and began dancing together. Bumping into another, and touching sweaty bodies.
The brunette drunkenly stumbled, but Jason caught her. She giggled, and then resumed dancing. Soon, she fell again, and was again saved by Jason.
"Maybe we should leave!" Jason tried shouting over the music.
"Huh?" She replied.
Jason grabbed her hand and pulled away from the crowd, and she dangled along.
"What were you saying?" She asked him.
"Want to leave this place together?" he asked her again.
"Sure." she drunkenly giggled.
He led her out. Jason had one thing on his mind. He wanted to fuck her badly. There was something about her, maybe her huge chest, not like Jason's taste was that complicated.
"You're cute!" She giggled.
"Thanks, you're cute too."
"You!" she started. "You keep looking at my boobs!" she laughed, a drunken giggly mess.
"Yeah." he admitted it.
They continued their journey, Jason leading the girl back towards his and Julie's room.
"The age wing?" she commented. "I have a room at the age wing too!"
"You do?"
"Yeah!"
They arrived at the room. She stumbled out of her heels and entered.
"Two beds? Who're you with?" she asked.
"My sister," he answered. He figured he'd spare her all the details.
"Oh, your sister. I see. That's neat. Well me, I came here with my dad and we-"
Jason wasn't paying any attention to what she was saying. Pretty drunk himself too, he had enough focus for her body and not much else.
…
Jason awoke the next morning. He slowly came to. He had a mild headache, something that could barely qualify as a hangover. It was good to be young again. The drinking yesterday would have put his 45 year old self out of commission for days.
He looked to his side. The girl from yesterday was snuggled up to him, still asleep. He thought back to last night, how he fucked her little body and watched her oversized tits flop around. She was fun, while maybe a little annoying, or at least her drunk personality, not like he knew how she was sober.
He looked to the other bed. Julie wasn't there. He figured she'd also found her fun yesterday. And speaking of family members, he should check upon his actual family, Sally, to see if she was doing alright.
The girl from yesterday was stretching, maybe waking up.
"Morning," she drowsily greeted
"Good morning." he greeted back.
Come to think of it, he never got her name, or maybe she said it and he forgot. Could be. Last night was a bit of a blur.
Even after saying good morning, the girl was still in bed. Jason wanted to go out and grab something to eat, but he also wanted to wait for the girl to properly wake up, so that she could join him. He figured he could take a quick shower while waiting, he needed one anyway.
One shower later, he was met with her standing there completely naked, and again he was captivated by her body. It was incredibly sexual, too a degree that almost felt crude. Her large boobs, oversized for her small frame, were the main contributor to that effect. Also how her hips jutted out, or how her tiny feet seemed too small for walking. Jason figured he was maybe objectifying her a bit too much, but that's what he'd missed from his youth, just two horny people being turned on by each other and acting on it. Simple and straightforward, and oh so very enjoyable. He wouldn't mind a second round if she was up for it. Breakfast could wait.
He gave her ass a little squeeze.
She playfully pushed his arm away. "Stop it," she giggled. "I want to eat first."
"Yeah. I'm also hungry."
"But after breakfast… I wouldn't mind." She gave him a cheeky smile.
They both got dressed. She borrowed some of Julie's clothes, not wanting to get redressed in yesterday's sweaty garments, though she had to reuse her own underwear as Julie's would be way too small.
"Did I ever get your name?" she asked him.
"Who knows. I'm Jason." he replied.
"Oof." her expression soured a bit. "That's my dad's name lol. Do you have a nickname or anything?
"Jay can work."
"Jay it is then, oh and I don't think I ever told you my name. I'm Sally."
"Sally." Jason froze. The realization hit him hard. He'd fucked his daughter.