Late Night Downward Dog

"Alright, Mark, lock the studio door behind you. It's just us tonight. Everyone else is gone."

I turned the key and watched her roll out the thick mats under the soft blue lights. Lena was in her thirties, all curves and confidence in that tight black sports bra and tiny yoga shorts that hugged her round ass like a second skin. Her skin already gleamed with oil.

"You've been killing it in class," she said, stretching her arms overhead. Her heavy tits strained against the fabric. "But I noticed your hips are still tight. Private session should help. You ready to go deep?"

"Yeah, I'm ready," I replied, peeling off my shirt. My cock was already half-hard just from the way she looked at me.

She smiled, slow and knowing. "Good. Start in downward dog. Show me that form."

I dropped into position, palms and feet planted, ass up high. She walked around me, her bare feet quiet on the mat.

"Back straighter... hips higher. Like this." Her warm hands gripped my waist. Then one slid lower, cupping my ass cheek through my shorts. "Mmm, nice and strong. But I think we need to loosen you up another way tonight."

Her fingers traced the seam of my shorts. I groaned.

"Lena... what are you doing?"

"Helping you explore deeper," she whispered, voice husky. "You've been staring at my ass for weeks in class. Don't deny it. I can feel your eyes on it every time I demo downward dog."

She stepped back, hooked her thumbs in her shorts, and slid them down her thick thighs. Her firm, oiled ass glowed under the lights, two perfect globes with a thin strip of fabric from her thong disappearing between them.

"Look at it," she said, bending forward into her own downward dog right in front of me. Her pussy lips pressed against the thin material, already wet. "You want it?"

"Fuck yes," I breathed.

"Then take it. But first, pull my thong aside. Taste how wet teaching you makes me."

I crawled forward, heart pounding, and hooked a finger under the string. Her slick pussy was shaved smooth, glistening. I dragged my tongue from her clit all the way up, circling her tight little anus.

"Oh shit... yes, right there," she moaned, pushing back against my face. "Lick my ass, Mark. Get it nice and sloppy."

I buried my tongue inside her, tasting the sweet oil mixed with her musk. She rocked back, grinding.

"Mmm, you're good with that tongue. Now stand up. Shorts off. I want that cock."

I stripped fast. My dick sprang free, thick and veined, already leaking. She stayed in downward dog, reaching back to spread her cheeks.

"Look how ready my ass is for you. Slide it in slow. I want to feel every inch stretching me."

I pressed the head of my cock against her oiled asshole. It winked at me, tight but eager. I pushed.

"Fuuuck," she gasped. "That's it... deeper. Don't stop."

The heat was insane, her ring gripping me like a fist as I sank in balls-deep. Her pussy dripped onto the mat below.

"God, your cock is so thick. Fuck my ass harder. Pound it."

I grabbed her wide hips and started thrusting, the sound of oiled skin slapping filling the empty studio. Each stroke made her big tits swing.

"Yes... right there... oh fuck, you're hitting so deep," she panted. "Rub my clit while you fuck my ass. Make me cum."

My fingers found her swollen nub, circling fast. Her moans got louder, broken.

"I'm gonna... shit, I'm cumming on your cock!"

Her asshole clenched rhythmically around me, milking hard. Juices squirted from her pussy onto my balls. I couldn't hold back.

"Lena... I'm gonna cum inside you."

"Do it. Fill my ass. Give me every drop."

I buried myself to the hilt and exploded, thick ropes of cum pumping deep into her bowels. She pushed back, taking it all, moaning my name.

We stayed locked like that, breathing hard, sweat mixing with the oil.

"Best... private session... ever," she laughed breathlessly, squeezing her ass around my softening cock. "Next week we work on your warrior pose. Naked."

"Can't fucking wait."