Caitlin & Emma IV
The nylon of the harness bites into my shoulders, the weight of the rope dragging at my hips as I lower myself into the jagged mouth of the Blue Mountains Caving System.
The air down here is different—heavy, tasting of wet limestone and ancient dust, a thick, metallic tang that coats the back of my throat.
My headlamp cuts a cone through the absolute black, illuminating the slick, sweating walls of the tunnel. Behind me, the clatter of Caitlin's boots echoes, sharp and rhythmic against the rock.
"Girl, you want me burrowing like a wombat," I call out, my voice bouncing off the narrow confines, stripped of its usual power by the oppressive stone.
I adjust my grip on the descending line, the gloves rough against my palms, sweat already prickling along my hairline beneath the helmet.
"Em's baby, spelunking, think of it as adventure in the dark," Caitlin's voice floats up, laced with that wicked, teasing lilt that always makes my cunt twitch.
She's close now; I can feel the heat radiating from her body even before she lands on the ledge beside me.
We squeeze into a wider chamber, the space opening up just enough for us to stand without hunching. The rock here is smooth, polished by millennia of water flow, glistening wetly under our combined torchlight.
I unclip the carabiner from my harness, the metal snapping loud in the silence, and turn to face her. Caitlin looks like a wet dream carved from shadow and light—her white tank top is plastered to her skin, translucent and revealing the heavy, soft swell of her breasts and the dark circles of her areolas. The high-cut dark shorts expose the thick, tan muscle of her thighs, leaving little to the imagination.
She doesn't wait for a breath. She steps in, crowding me against the cold cave wall, her hand immediately finding the curve of my ass through the tight material of my spelunking suit.
She musses my tush, her fingers digging into the meat of my glutes with a rough, possessive grip that sends a jolt of electricity straight up my spine.
"Fuck, Caitlin," I gasp, the word echoing. "We just got down here."
"Shut up and take it," she growls, her eyes glinting in the beam of my headlamp. She grabs a handful of my hair at the nape of my neck, tilting my head back, and spits.
A long, thick string of saliva lands hot and wet on my cheek, trailing down toward my mouth. It's filthy, degrading, and so fucking hot I feel my knees weaken. I lean in, catching the drip with my tongue, tasting the salt and the heat of her.
"You are so fierce, ah," I moan, the sound ragged in my throat.
She pushes me harder against the rock, her other hand yanking the zipper of my suit down. The cool air hits my skin, followed immediately by her hot, wet palm.
She slides her hand into the back of my shorts, bypassing the lace of my panties to find the tight, puckered ring of my asshole. I'm dry, but she fixes that with another glob of spit, this time dropping it directly onto her fingers before she smears it against my hole.
"Your finger is so... fucking good," I hiss, my head falling back against the stone.
"My asshole is touched by your finger so deep, so dirty," I babble, the words tearing out of me as she pushes past the resistance. The stretch burns, a sharp, exquisite pain that melts into a heavy, throbbing pleasure.
She works me open, her finger crooking, twisting, pumping in and out with a wet, squelching sound that seems deafening in the quiet cave.
"Look at you, taking it in the dirt," she whispers, biting at my earlobe. "Such a bad girl."
I reach for her, my hands fumbling with the drawstring of her shorts. I need to touch her, to own her the way she's owning me. I shove my hand down the front of her panties, my fingers sliding through the slick, soaking wet folds of her cunt.
She's drenched, her juices coating my fingers instantly. I find her clit, hard and straining, and circle it ruthlessly.
"Ah—right there," she gasps, her hips bucking against my hand. "Don't stop—"
But I want more. I want her ass too. I spin us around, pinning her to the wall, reversing our positions. I drop to my knees, the gravel digging into my skin, and yank her shorts down.
The smell of her arousal hits me—musky, sweet, and overpowering. I spread her cheeks, exposing the tight, brown star of her anus. I don't tease. I lean in and drag the flat of my tongue across her hole, tasting the salt and sweat of her skin.
"Y-yes, yes, yes!" she cries out, her hands tangling in my hair, pushing my face deeper into her crack.
I spit on her asshole, watching the saliva glisten on the dark skin, then dive back in. I fuck her with my tongue, stiffening it to penetrate her rim, listening to the wet slurping sounds fill the chamber.
It's primal, animalistic. We are just two bodies in the dark, fucking in the mud and the rock.
"Uhhhn—keep doing that for eternity—" she groans, her thighs trembling against my ears.
I replace my tongue with two fingers, forcing them deep into her rectum, feeling her muscles clamp down on me. I curl my fingers, searching for that spot, while my other hand reaches back to finger my own asshole.
We are connected by this drive, this shared need to be filled, to be stretched.
The pressure builds low in my belly, a tight coil of heat. The sounds of our fucking—the slap of skin, the wet squelch of fingers in holes, our ragged breathing—echo around us, amplifying the depravity.
"Ah! I can't stand it, I'm about to orgasm! Help! Help! Ah, ah," Caitlin screams, her voice shattering into a high-pitched keen. Her body convulses, her asshole clamping viciously around my fingers as she cums, soaking my hand with a fresh gush of fluid.
The sight of her coming undone sends me over the edge. I grind my own fingers deeper into my ass, my thumb rubbing my clit through the fabric of my suit.
My vision whites out, the darkness of the cave exploding into stars of pleasure. I ride the wave, my body shaking, collapsing forward against her legs as the aftershocks ripple through us both.
The only sound our heavy panting and the distant, steady drip of water.
The torchlight flickers over our tangled limbs, illuminating the sweat, the spit, the raw, red marks of our pleasure.
We are filthy, wrecked, and utterly satisfied in the belly of the mountain.