"This will be FUN!" says Ashley, enthusiastically. "Follow me to my room!" She orders firmly, before turning to go to her room.
You try hard to resist, but after a brief moment of struggle, your feet and legs begin moving of their own accord, and you find yourself following behind your little sister.
She looks behind her on the way, and laughs out loud in pleasant surprise when she sees you following her.
"Wow! It's actually working! This is GREAT!"
The two of you finally enter her room, and once there, you find your freedom returned to you.
"Ashley, PLEASE!" You beg, "Stop doing this! Don't make me-"
"Hush!"
You mouth instantly clams up and you are unable to open it.
"Now hold still and be quite."
The rest of your body is now immobile, too. Ashley giggles sadistically to herself.
"Now, for your first task..."
Then to your horror, you watch as she turns around, bends over her bed, and proceeds to pull down her shorts and panties, exposing her young, bare, bottom. She cranes her neck around, smiling at you, wickedly.
"Now, kiss my butt!"
This is horrible! Your gut is tied up in a nasty knot of guilt, shame, awkwardness, and.... excitement. You want so badly to get out of there, or at least to voice a protest, but your mouth won't respond, and instead prepares its lips for kissing, as you find your body bending down towards her. Your lips plant themselves right on one of her bare cheeks, causing her to giggle.
She then pulls her shorts back up, and turns back around to face you.
"hahahah! See, that wasn't so hard! Now, remove your all your clothes."
Once again, you find this going way too far, but once again, you are unable to resist or object, as first, your arms remove your shirt, and then pull down your pants, leaving you standing there before your 12-year-old little sister, in just your underwear.
"I said ALL your clothes! I should punish you, somehow, for not obeying completely.Are we still trying to resist, hmm? Now take off those undies, too!"
A moment later, your underwear is off, and you are butt naked before your sister, who stands there, smiling at you.
"Much better!" She sings, cheerfully.
"Now then, my buttkissing brother, the next thing I want you to do, is."