Becca followed the creek in the woods once again. It was just yesterday that she'd brought me here the first time, but so much had happened that it felt so long ago. I had infested two people already, one being my own wife, and if Becca hadn't already been the bug queen, I would have infested her too. Nothing would ever be the same for us again, and here I was, willingly walking back to the source of this undoing of my family. It should have bothered me, I knew it should, but all I wanted was to be packed with bugs, to let them use my body to proliferate.
The trek to the cave felt like a death march. My balls ached and itched. My cock yearned to be loaded. I hadn't been empty this long since Becca had first impregnated me, and her ass and hips swaying in front of me as she walked didn't help things. My dick strained against my sweatpants, desperate to find relief, and if we weren't on our way to insect heaven I'm certain that I would've lost the willpower to let Becca keep walking. I resolved to save myself for the cave, and mercifully, we arrived after just a few minutes more.
Becca and I stood a moment at the mouth of the cave. A slow, cool current of air washed over us from the dark opening, mixed with the echoes of the creek trickling down onto ancient stone. Now that we were here, I found that I was actually nervous. There was a pit forming in my stomach as I realized the uncertainty that lay ahead. I had no idea what I was actually getting into.
Becca lifted her shirt up over her head and dropped it onto the forest floor, exposing her bare breasts to the chilly breath of the cave. She unbuttoned and unzipped her pants, scooted them down to her ankles, and removed them. She shivered as she stood, her naked body covered in goosebumps, and turned to look at me expectantly.
I quickly followed her lead, tearing my shirt off and dropping my sweatpants. My stiff cock bounced up proudly in the icy breeze, leaking precum, begging to be invaded.
"Well look at you!" Becca laughed, "I guess that means you're ready, then?"
My heart beat in my chest and the head of my dick. I simply nodded in response, both too horny and too nervous to form words.
"Don't worry, we won't go too deep, Daddy," Becca grabbed my hand and smiled softly. I nodded again, and she moved toward the cave's entrance, tugging me along behind her. She took the first precarious steps down into the hole, using me for balance, before pulling me in after her. It was darker and colder inside the first passage than yesterday. The low sun cast a deep orange shaft across the far wall, leaving everything else hidden in shadow. The air was damp, heavy with moisture that clung to our bare skin.
As we moved further in, the splashing at the back of the cave grew louder, where the creek cut down into the next passage. My heart rate skyrocketed as we approached the drop, still a torturous mix of anxiety and anticipation. Becca definitely would have heard the thumping in my chest if it weren't for the water. I was here, this time for real.
Becca climbed down through the opening, soaking her skin in the cold water as she went. She disappeared into the total darkness, swallowed by the cave. Not enthusiastic about being separated from my guide, I quickly followed after her. I sat opposite of the creek on the lip of the hole and lowered my legs down first. I soon realized my dick was so big that the only option was to let it fold up against me as I descended. With a sigh, I stood up onto my arms and let my hips down next, drowning my cock in the icy waterfall. I dropped as fast as I could, and found myself surrounded by oppressive blackness. The hole I'd come through was all that I could see, a faint light in the roof of the passage.
"Becca?" I called.
Nothing.
"Becca?!" I shouted. My voice echoed deep into the gloom, but no reply came. Fuck. Where the fuck was she? Becca was definitely not above a prank, even in a scenario like this. Especially in a scenario like this, actually. Either that, or...she was already busy. Could she be with a bug so soon? My cock twitched at that thought, and I pressed on into the dark.
I squinted to see my feet as I walked, but I couldn't even see my hand in front of my face. I had to shuffle along, carefully feeling for drops or sharp edges. As my eyes strained, they became irritated. They welled with tears, like I was allergic to the dark, and despite blinking and rubbing them, the feeling only got worse. I squeezed my eyes shut for several seconds, trying to clear whatever was causing this pain, and underneath my eyelids, I felt myself blink... sideways.
I shook my head and opened my eyes wide in shock. My second lids blinked a few times more, and I saw a sort of pattern, like TV static, that slowly coalesced into shapes and shadows. The walls of the cave revealed themselves to me. I could see the creek running down the passage, and the offshoots that Becca had me explore the first time. It wasn't normal sight, sort of a black and white, fuzzy picture, and only of my immediate surroundings. Darkness still permeated the periphery of my view, but it was better than nothing. My skin was bright, and I was steaming, especially off my cock, while the creek was pitch black. I could see my footprints trailing behind me, glowing on the stone floor. I had developed some form of rudimentary thermal vision.
I quickly discovered a second set of footprints on the other side of the creek that split the passage in half. They had to be Becca's.
I followed her footprints, each one glowing faintly, a small flicker of warmth in the oppressive dark of the cave. My own feet stamped glowing imprints on the cold stone with every step. This new thermal sense let me see, but it made the darkness feel colder, more suffocating, like the air itself was holding its breath.
Her trail was still warm, and I had dropped through the hole so soon after her. She had to be close, right? That small hope faded quickly when I noticed something. Deeper into the cave, the trail... stopped.
I froze, my heart pounding painfully in my chest. I stared at the last glowing footprint as it slowly faded, swallowed up by the cold. She couldn't have just vanished! She'd been here, just moments ago, but her footsteps didn't continue.
Panic clawed at me. I wasn't expecting to face this cave alone, and my fear was overpowering my lust. I didn't want to be here without Becca. I forced myself to breathe, to stay calm.
I stepped forward, my feet heavy, and scanned the floor, desperate for any sign of her. But there was nothing. No new footprints. Only the dim glow of my own trail, as cold as the rest of the cave.
Then, in the corner of my vision, something flickered.
A distortion in the heat, faint but unmistakable. A shadow that wasn't mine, a wavy blur in the air. My breath caught in my throat. I jerked my head toward it, but it was gone. Nothing.
Another distortion, right in front of me this time. Firmly in my field of view, I was able to follow the movement down to the floor, where a bright white spatter had appeared, like someone had broken a glow stick. Another spatter soon materialized, then another. Something warm was dripping at my feet.
I cautiously turned my gaze up, to the roof of the cave. The passage must have opened up, because the roof was far enough away that I could only see black, except for a blaze of heat 15 or 20 feet right above me. It was unmistakably Becca's naked body, pinned up against the rocky ceiling. Her arms and legs, along with her head, were all obscured in darkness, leaving only her torso and thighs exposed. Her breasts hung down toward me, swaying rhythmically, while a thick serpentine appendage dented her toned stomach out as it stirred her guts. A liquid dripped from her pussy, some form of lubrication, her's or... its.
My relief of finding Becca lasted only seconds, before I was overwhelmed with latent horniness, no longer suppressed by fear. My cock solidified as I watched Becca take the mystery bug on the ceiling of the cave. The long, flexible member moved erratically, curling forward or backward as it drove in and out of her. I could faintly hear Becca moan now and again through whatever dark shape held her head, muffling the sound as it used her body.
While I watched, I felt the temperature suddenly drop all around me. The hairs on the back of my neck prickled. My gut twisted. Something was out there. I couldn't see it, not directly, but I felt it.
My pulse hammered from my chest down through my cock, which twitched in time with my own breathing. The darkness around me felt... wrong.
I scanned the cave again, and my eyes locked onto something. Not a glow, but the opposite: absolute darkness, moving deeper in the cave. My chest tightened. I couldn't look away.
The shadow advanced, and the temperature dropped even more, the cold biting into my skin. The chill in the air was suffocating now, pressing down on me. I swallowed hard, trying to steady myself.
The air around me shifted, cooler than anything I had ever felt. This was it. It was there. My feet moved without me thinking, driven by a primal instinct toward the umbral entity. It took hold of my arms and legs and dropped me in an instant to my knees. My arms were pulled back behind me, trapping my hands against the cave floor. The cold crawled into my bones, my breath coming in short, ragged bursts.
The rest of me immobilized, my cock stood hungrily out into the open air, aching to be used. My heart skipped and my breath caught in my throat as it was enveloped down to the hilt by the darkness, disappearing before me. I rolled my head back as a smooth, slick organ penetrated my cock and shoved its way down my urethra, finally soothing the empty torture I had been enduring. The probe filled every inch of me and expanded, stretching my shaft. As it did, hair-like protrusions came off the main mass and worked into the flesh of my cock. Tendrils shot down into my balls and deep into my bladder, coating the walls with more of the feelers that weaved themselves into the tissue, joining man and monster.
