Anna felt sad, her mum had got married to a top lawyer over the Christmas break, so now she had to move in with him and his daughter, at least on the bright side she was just a year older than her so she didn't have to play with a little kid.

As her and her mum got to the door Anna was getting a weird rant from her mum about her clothes and how she should of brushed her hair, Anna just shrugged it off as she chapped on the door, they waited for a moment before a girl with blonde hair and blue eyes, and D-cups visible through her sports bra, which made Anna very wet.

"Oh, good Elsa your here! This is Anna, my daughter, I hope you two get along!" Anna and Elsa shook hands, " Now, can you help me with the boxes? There's only six, so two each!" Anna's mum said way to excitedly, though Anna didn't mind, she was entranced by Elsa's big tits.

"Yeah, so, dad hasn't finished your room yet Anna, so we have to share, is that okay?" Elsa asked cautiously, Anna nodded so fast it was like her head was going to explode, "Great! Come on, I'll show you my room!" Anna followed Elsa up stairs, to a room covered with sketches of different dress designs.

"Sorry about the mess," the blonde said as she cleared a space on the floor, "I'm trying to become a designer but it's hard to come up with dress designs nowadays, everything's been done!"

"I doubt that! If you think your dreams ridiculous, think again, I want to be an author as successful as J.K Rowling, but I don't even have a single book idea!" Elsa chuckled a bit, causing her massive tits to bounce, making Anna lick her lips.

Elsa noticed the look she was getting and decided to have some fun, started to walk to her drawer with a stack of paper and dropped it all over the floor, bent over, made sure Anna was looking at her as her skirt lifted up to reveal that she had no panties on, her big ass and pussy fully exposed to the younger girl.

Elsa saw Anna start to blush so she started to grab her ass and moan, Anna looked ready to fuck but she wanted more time, so Elsa looked straight at Anna and fingered herself, then winked at her.

It seemed Anna couldn't stop herself, because she launched herself at Elsa and kissed her while shoving her finger up Elsa's pussy, "Your fucking hot! I'm gonna fuck you so hard!" Elsa just screamed as she felt her pussy being totally destroyed by Anna as she started to fist her.

Elsa came all over the place and Anna took the chance to take Elsa's skirt and sports bra off, "That was fucking amazing Anna! Where did you learn to do that! It was fucking hot!"

"I'll only tell you if you make me cum, okay?" the strawberry blonde said as she played with her step-sisters tits, "So first suck my boobs slut!" and she tore off her own clothes, revealing C-cups with insanely large nipples.

"Oh fuck yes!" Elsa said as she jumped onto her bed pulling Anna down with her, "Spread your legs! If you move them then you will get a spanking! You hear me!" the younger girl obeyed and spread her legs apart, waited a moment, then felt a tongue enter her pussy so hard and fast she clamped her legs around Elsa's head.

Elsa continued until Anna came then got her on all fours, ass sticking out, "I told you!" she said as she started to spank Anna, she stopped once she had done 12 slaps, "Next time I won't be so nice!"

Anna smirked as she rubbed her ass, "That hurt Elsa, please can you kiss it better?" Elsa smiled, she could tell she was going to be doing this a lot from now on, she lay down and got them into 69 and started to lick her ass, "Oh fuck yeah! At this rate you'll be having sex with my teacher in no time!" Anna then shoved her in tire tongue in Elsa's pussy.

After a while they both got tired and stopped for a minute, "So who taught you Anna?"

"Me!" Elsa turned and saw Anna's mum.

"This is hot!"