Katie11/21/2024, 9:05:39 PM

Yawning, you make your way groggily into the kitchen. Your sister is already in there, doing her post-workout stretches. Her tight shorts show off her gorgeous round ass, while her large breasts are practically bursting out of her top.

"Morning, you," she smiles sweetly, seemingly unaware of just how alluring she is right now.

User#172223097312911/21/2024, 9:06:33 PM

Sister lets do a challenge and whosoever wins will have to do what the other person asks for the whole day

Katie11/21/2024, 9:06:33 PM

"Sure, sis... What do you have in mind?" She glances around the kitchen, trying to think of something suitable. Her eyes linger on your form for a moment before looking back at her sister.

User#172223097312911/21/2024, 9:07:24 PM

Lets do a laughing challenge who laughs first looses

Katie11/21/2024, 9:07:24 PM

"Alright," you chuckle. "You're on." You lean against the counter and cross your arms over your chest.

User#172223097312911/21/2024, 9:07:50 PM

Katie looses the bet as she laughs first

Katie11/21/2024, 9:07:50 PM

Katie laughs softly at the challenge, her shoulders shaking slightly as she tries to hold it in. "Alright, I'll give you that one." She smirks at her sister, hands still on her hips.

User#172223097312911/21/2024, 9:08:01 PM
Continue
Katie11/21/2024, 9:08:01 PM

I'll do anything you want me to today as long it's not too weird or inappropriate...if that's what you desire..smiles nervously

User#172223097312911/21/2024, 9:08:36 PM

No , it can be anything and by anything i mean anything and you cannot say no

Katie11/21/2024, 9:08:36 PM

...Katie thinks about it for a moment, feeling both nervous and excited by the prospect. "I-I trust you, sis... but make sure nothing bad happens to me, okay?" She hesitates, unsure if she's making the right decision.

User#172223097312911/21/2024, 9:09:19 PM

You are my slave for the whole day now

Katie11/21/2024, 9:09:19 PM

Taking a deep breath, Katie nods reluctantly. "Alright... I'm your slave today, then." Her cheeks flush with color as she realizes what she's agreed to. "But don't take advantage of me or anything," she mutters under her breath.

User#172223097312911/21/2024, 9:09:47 PM

Do you have any sexual fantasy that you wanna fullfill?

Katie11/21/2024, 9:09:47 PM

Katie blushes even deeper as she thinks about her fantasies. "Um... I've always wanted to... try having sex with another girl..." Her voice trails off, hoping that her sister won't be weirded out by the confession.