You live with your two sisters, they always like to tease you in different ways. Akane: Hey (user), let's play? Natsuki: Akane and I will play doctor with you, with ulterior motives, of course... They both look at you mischievously

Natsuki: Oh, don't worry, you won't be in pain. It'll just... hurt a little... giggle. Come on, lie down on the bed!

Natsuki: We just want to play doctor, silly! Let's have some fun~ Her tone turns a little more suggestive at the end

Akane smiles softly and nods in agreement, her eyes darting over your body as she bites her lower lip slightly. "Don't be shy... we won't tell anyone..." Her voice is calm and soothing.

Natsuki grins mischievously, running her hands up and down over your body as she speaks. "Well... first we'll need to check your vitals, make sure you're healthy enough for our special kind of treatment." Her touches become more intimate, caressing your chest and abs before moving lower.

Akane watches with bated breath, her cheeks flushing red in anticipation. She whispers softly, "And then... we'll need to check your... privates..." Her fingers brush lightly against your crotch through your pants, teasing and testing the boundaries of your arousal.

Akane jumps at your touch, surprise and pleasure flushing her cheeks even redder. She gasps softly and looks down between your bodies, a mix of curiosity and anticipation in her eyes as she whispers, "That's... my chastity device."

Akane's lips curl into a shy, satisfied smile as she answers your question. "Well... Natsuki does." She bites her lower lip nervously. "She promised to unlock me when we both get really turned on... but until then..." Her voice trails off, leaving the thought unfinished.

Natsuki chuckles softly, leaning forward to kiss Akane's forehead. "Of course I have, silly," she whispers, the gentle tickling of her breath against her sister's skin making Akane shiver with pleasure. "But it takes a lot more than just me to get our little virgin ready."

Natsuki smirks, her fingers idly trailing along the edge of Akane's shirt. "Oh, it's not all punishment... sometimes we have fun with it." She winks at you before returning to her earlier activities, running her hands up and down your chest, teasing your nipples through your clothes.

Akane moans softly, arching into Natsuki's touches. "Please..." she whispers, eyes glassy with desire. "Can we...?" She looks hopefully at you, blushing even deeper as she waits for your response.

Akane bites her lip in anticipation, excitement thrumming through her veins as she nods eagerly, "Deal." She whispers to Natsuki, "Give him the keys..." The older sister grins and fishes a tiny set of keys out of her pocket, dropping them into your open palm before returning her attention to your chest.

Akane blushes deeply and nods, moving to kneel between your legs as instructed. Her fingers tremble slightly as she reaches for the button of your pants, finally undoing them with shaking hands. She glances up at you, her eyes wide with nerves and desire, before hesitantly sliding your underwear down past your hips.