He decided that he had to get some fresh air now that most of his rational thoughts had returned. Staying inside near her was clouding his mind and making his cock hard again. None in the cave barred him from leaving or even seemed to notice his movements. On his way out, he found and gathered his discarded clothing while he pondered the strange situation. He found his backpack near the tunnel entrance and, thankfully, it had not been carried off by some hungry animal. The sun was getting low in the sky. He guessed that he had been inside the cave for at least five hours since it was near midday when he'd entered. He put up his hammock and prepared a small fire. There was no need for heat, but a little smoke kept the majority of insects at bay.
He fell into an uneasy slumber as his tiny fire sputtered and died. His balls felt uncomfortably hot and there was still that squirming movement from inside. His dreams were invaded by shadows and strange unknown things. Creeping, slithering things. Oddly though, he felt unafraid. He only felt warm, peaceful, and serene.
*****
When he woke, he felt refreshed and invigorated. However, his raging erection had also returned, and his newly acquired length poked up past the waistband of his pants. Since it was warm and there was definitely no one around for many miles, he removed his clothing and packed it away letting his thick, throbbing cock bob freely. Upon inspection, he saw that his balls had grown again and were now about as big as baseballs. He'd be walking with a definite cowboy swagger now to avoid becoming sore.
He was going to need to study these strange primates further if he was going to be able to figure out what had happened. As he navigated back through the winding but branchless tunnel, he caught her fragrance again. It made his cock throb and begin to leak. While it was very arousing, it didn't cloud his mind badly like it had the day before. It made him warm and horny, sure, but it also filled him with a sense of calm, as if everything would be okay no matter what happened.
He entered the chamber, still wearing only his shoes and socks. The female lay in the nest currently getting pounded by one of the males. He decided then that he'd need to give her a name. From now on, he would call her Eve because of her unique lack of hair and her obvious exaggerated femininity. He had counted five males last time. Now there were only two, plus the one doing the fucking. The two of them moved around the cave stoically tending the nest and keeping things tidy, their cocks half hard and occasionally oozing a drop or two of pre cum onto the ground.
The one fucking Eve had finished now and wandered away with his grossly swollen cockhead swinging heavily between his legs. Schtar watched him disappear through a naturally concealed exit at the rear of the cave. It wasn't surprising that he had missed the continuing tunnel on his first visit considering his mental state at the time. He would find out where it led soon, but first he needed to try to examine Eve as closely as possible to put some pieces of this puzzle together.
Looking at her now, Eve seemed much the same. The skin of her pale, gravid belly was stretched tight and her fat nipples dribbled out milk that ran down her massive breasts in little streams. Soft moans escaped her as she lightly ran her hands over her body. His eyes were instinctively drawn lower until he gazed upon the hugely swollen pussy lips that had brought him such delicious pleasure. Lewdly spread, milky white fluid drooled out continuously, ready for the next big dick.
He stepped away from the wall near the entrance and moved further into the cave making his way to Eve. He took occasional glances at the two males, but they continued to ignore him. There must have been something about him that stopped him from being perceived as a threat. His heart thumped louder in his chest as he stepped over the edge of the nest. A sudden wave of dizziness hit him hard and he fell to his hands and knees. When he opened his eyes, his face was mere inches from her plump lips. As he was regaining his bearings, a gush of fluid erupted from her pussy to blast him in the face. Taken completely off his guard, he choked, swallowed, and sputtered. Just then, croaking, gravelly sounding words came from her throat. "Feed. Us." He felt compelled to obey, as if it was the right thing to do. He seemed to know too, that she hadn't meant food for her mouth. She wanted his cum.
He felt powerless to resist as he rose up to his knees and moved forward. He eagerly slid his throbbing cock in to the hilt. The pleasure was exquisite as he began thrusting deep and hard. She was so wet that her juices began to pool beneath them making their noises even more lewd. A low moan escaped her as she came almost immediately. Her hungry box clenched and squeezed around his cock, encouraging him to fill her with everything he had. Being more clearheaded this time, he felt it when he came, and his cockhead throbbed and swelled bigger and bigger. He felt it lock him deep inside as he continued to pump jet after jet of his hot cum directly into her womb. He knew that he wouldn't be released until he was empty. The crawling and squirming in his balls made sure of that. He kept pumping and squirting for what felt like minutes until finally, no more came out. There was no tickling at the end of his cock this time. Nor did he feel anything traveling down into him. Perhaps the purpose for their coupling was different this time?
Her belly looked bigger than before, but nothing came out as he withdrew. Her womb must have had some way of holding it all inside. His drenched cock popped free and, sure enough, the head was almost the size of a slick, purple baseball. It was amazing that it could swell so much and still mostly return to normal.
As he knelt, recovering, he continued to observe Eve. Her hands had returned to pulling on her nipples and massaging her breasts. She directed the spurts of milk so that now they ran down her middle and cascaded over her mons to add to the small puddle beneath her ass in the grass and jungle leaves. She continued this self-milking for what must have been at least twenty minutes. Schtar looked up when she stopped and found them to be completely alone in the room.
Suddenly she moaned loudly, and her body tensed. Her eyes were rolled back, her mouth agape and drooling as something unseen caused her to cum hard. He fell back on his butt and watched in awe as the huge glistening lips of her pussy slowly spread apart. A twisting, wriggling, white mass emerged and plopped into her puddle. What he saw was a large pile of smooth white worms, coated in milk and slime. They were each about two inches long and nearly as thick as a pencil. My god, this is what he'd felt enter his penis. They were inside him!
On the verge of panic, he moved his cock out of the way and hefted his balls. They were warm, heavy, and most definitely still squirming. Unsure of what to do next, he looked back to the newly birthed worms, which had settled into a slowly writhing pile, nestled in her ass crack. He continued to stare as her drooling vagina convulsed again and again. She came hard and shook as a second and then a third blob of worms joined the pile. The process kept repeating until her belly appeared to be back almost to normal. The pile of writhing white creatures filled all of the space between her legs.
Cautiously, he reached out and slid one of them from the pile. He examined it in his palm in the dim light. It was completely smooth and had no discernable way of telling one end from the other except for the direction that it crawled. If it wasn't round in shape, Schtar would have thought it to be some kind of slug. He brought it up closer to his face and gave it a sniff. It smelled earthy, but not overpoweringly so.
As an experiment, and because he had always been pretty impulsive, he lowered his hand and let the head of his penis rest there with the worm. He figured that, if it went inside, one more wouldn't cause any more problems than he currently had. The worm poked around lamely until it found the slit of his entrance. When it came into contact with the precum drooling from his dick it started moving with more vigor and began to push its way inside. Just like before he felt it start with tickling and then the delightful stretching sensation as it descended his urethra. At the bottom, its movements triggered an orgasm. He looked on in fascination as his cockhead bloated. It swelled bigger and bigger and then thick spurts of cum shot out one after another. He flung his head back in ecstasy. The geyser had enough force and volume to cover the pile of worms in a glaze, which then became hyperactive upon contact with his cum. All in the pile began squirming toward him seeking the source. The weight of his fat cockhead had pulled the end of his dick down towards the pile. Still twitching from the powerful orgasm, he didn't even notice them until the pile had nearly engulfed his entire groin. The excited worms were quick and began entering his cum slicked cock as fast as they could...6, 7, 8... holy shit, it took all of his strength and willpower to stand up from the pile and back away. Brushing off worms and moving to lean heavily against the cave wall. He realized now why the other males had left the room when Eve had started milking herself. The remaining worms, sensing that their delicious meal had left, returned to Eve and the slowly diminishing puddle between her legs.
