Math class, and discover something new about your twin…

You walk into your first class of the day down towards the back of the room. Your choice in underwear for the day has left you feeling uncomfortable so sitting toward the back of the room seemed like the best idea. A moment later your sister walks in and sits down beside you. “Hey there bro!” She slaps you on the back as she sits. “Looks like we have the same first period!” She leaned in close to whisper. “I hope you enjoy it as much as I will.” With that baffling statement she gets up and moves to another seat elsewhere in the room.

The class starts off like first day as the teacher has everyone stand up and say their name to introduce themselves. When it was your turn you stand up and begin to introduce yourself. Just as you start taking you feel a strange pressure on your penis. It felt like the crotch of the panties just contracted around your member. You ignore it and continue with your introduction when you feel something start to gently squeezing you balls which starts to make you hard. You quickly finish and sit down hoping no one notice you star to get a boner in class. You glance a look towards your sister Chantelle and see her smiling widely. Her hand sitting on her desk making a weird motion.

It then hit you like a ton of bricks that her finger motion is exactly what you were feeling down below. It was like she was teasing your balls from across the room. Her strange words from before class started rang through your head. ‘I hope you enjoy it as much as I will’ is what she said. You immediately start to question what is going on. She stops making the finger motion and the sensation stops. She makes a stroking motion a few times and you feel the crotch of the pink panties mimic her hand motion. She the. Pulls out her phone discreetly and starts typing. A moment later you feel your phone buzz in your pocket and you quickly pull it out to see. You feel your heart sink as you read the words of the text message from your sister.

“You need to learn not to touch stuff that doesn’t belong to you. Stealing and wearing my panties is just disgusting. Now that ass of yours is mine!”

As you look down at your phone you hear the teacher call your name. “Come up here and write on the board the first line of page 5.”

You feel fear rush through you as you really didn’t want to draw attention today but now the whole class is going to be looking at you. You get up and make your way to the front of the room with your book. Picking up the dry erase maker you start writing out what you were directed when you feel you ass get yanked to the side an inch. You quickly finish writing and start heading back to your seat. The whole time you eye your sister who starts swaying her index finger. As she does you feel the panties forcibly sway you ass as you walk making you walk very feminine. Your face beat red the whole time.

As soon as you make it to your seat you pull out your phone and reply to her. “What the fuck is going on!? How are you doing that?” You question.

Her response sent chills up your spine. “My panties my rules. You don’t know me as well as you think. Now as I said. At least for the rest of the day your ass is mine! Mawhaha!”