You see a new side of your teacher (her naked backside)

You find the spot and park your car. It's a small city-run art museum near town hall. Just some paintings by local artists hanging inside. You make your way to the back and find french-doors marked with a sign warning of a private event currently being held, and that these doors must remain shut.

You creak open the door a pinch and see artists at easels. "This must be the place" you think to yourself, and step into the room nervously.

"Oh, John you made it!" you hear Ms Orwin's voice say. You turn and see your teacher waving enthusiastically to you from the front of the room... Wearing nothing at all.

"Hey everybody, this is my student John. He just posed nude for the first time Today! I'm quite proud of him." as she points un your direction, garnering you a small sampling of applause.

"Well that's enough for this pose I suppose. let's take a 5 minute break before the next one! ", she says as she stands up and strides over to you smiling. She gives you a big hug while your brain is still busy rebooting. Encountering your teacher naked, and then getting squeezed in the arms of her unexpectedly fit body is too much to process...

"You're late, I worried you weren't coming!" she says leaning back so that her full bare breasts are showing, while still holding on to you. But you have trouble following her words, as you are completely distracted feeling her naked body pressed against you.

"I told you, you only needed a pencil and paper..." she says smirking. "I had hoped you would show up with ONLY those things, and no clothes!"

You stare at her chest and then back at her face... "You wanted both of us to be naked?" you respond... Though she seems to miss your calling attention to her unexpected nudity.

"YES!" she yells, as she thrusts her fists in the air. You hadn't seen your teacher acting this informal before.

"Oh I'm sorry," she backpedals... "I've already had a few drinks tonight. Can I get you something too?" as she starts walking towards a makeshift bar in the back of the room, looking over her shoulder at you for a response as her hips slide back and forth.

You stare in disbelief, hypnotized by the image of your teacher's unexpectedly muscular ass walking away from you.

"Oh! I forget you aren't 21. Scratch that... " as she stops and contemplates why your jaw is still on the floor.

"OH!" she exclaims while blushing brightly. "You've never seen me nude before!" as you bashfully nod your head.

She runs back over to you and hugs you tightly. "I forgot to mention that didn't I! It's not a problem is it? Let me quickly..." and she pushes back from you to do a pirouette to show off her toned body and shaved pussy. "Now you've seen everything. We're even!" She says laughing.

She returns to stand confidently in front of you. "I teach and model..." she says as she pulls you back into a hug again, sliding one leg between yours and one arm up your back. "Normally I alternate with Jocelyn, a friend and fellow model... But she wasn't feeling well tonight, so I'm trying to do double duty. It's a bit frantic... It's been a crazy day for you and I huh?" she says as she presses her bare breasts against you. "I meant to ask you something..."

She then glances at the clock, and abruptly panics, grabbing your hand pulling you over to an empty easel. "Nevermind for now... Here's a spot for you to get set up. It's about time for me to do another pose..." she says before hesitating and then hugging you tightly again. You are overwhelmed by the pleasure it's giving you each time she finds an excuse to press all of her nude body parts against you.

Your dick was already getting hard when you pulled into the lot, but now it was throbbing hard in your pants as your teacher pressed against you. You can't believe how firm she is everywhere that your hands touch. You try feel as much as you can politely get away with, rubbing and squeezing your hands around. She no doubt can hear your faster breathing, and your heartbeat against her bare flesh.

"I'm so happy you showed up" Ms Orwin whispers in your ear as she subtly shifts her weight back and forth.

Despite Ms Orwin being more than 20 years older, your dick is painfully **** to get inside of the shaved vagina just on the other side of this denim wall, and you find yourself uncontrollably thrusting your hips against her body.

Ms Orwin pulls away smiling and says "Oh my!... And I can tell you are happy to be here too..." as she runs her fingers along your arm giggling. "Thank you for that encouragement..." she says, before grabbing your face and giving you a long and forceful kiss on the cheek. She then steps back from you before turning and bounding to the front of the room. "We'll talk in a few minutes... I need your help with something" she says with a wink, "for now just draw a beautiful picture of me please!"