The large worm sensed the odor of food very close by, and began to rise from its burrow. The sightless creature was unaware of the woman waiting patiently above. Resting her breasts comfortably atop a soft cushion, she lay with her belly on the ground, her legs slightly spread so that her thighs surrounded the entrance of the worm's lair.
The worm emerged and cautiously probed the soft, salty surface of the unexpected obstructions it encountered on either side. These barriers tapered together into a crevice which the worm probed, coming closer and closer to the source of the aroma it desired. Finding the woman's vagina, the worm poked its head inside, enjoying the pleasant feel of the warm, moist flesh all around it. Still, it could not find what it really wanted there, so it withdrew, cleaning the walls of the vagina with its mouth as it went, oblivious to the woman's quiet moans of pleasure.
Emerging from the woman's genitalia and probing upward, it found her puckered anus between the firm globes of her buttocks. It nuzzled at the opening, and realized that this was the source of that seductive scent. Suddenly excited, it burrowed deep inside. The young woman groaned and shifted, savoring the sensation of the worm pushing its three-centimeter-wide head between the resisting sphincter muscles of her tight anal bud. With increasing force, the worm crawled slowly through her spasming anus into the hot, tasty interior of her rectum.
The woman's convulsing anus slowly and reluctantly yielded to the powerful, muscular shaft impaling it as the worm crawled into her body, sliding segment after segment through her sensitive, tender hole. Gasping with pleasure, the woman began to stroke her swollen clitoris as her hips set into rhythmic thrusts.
Reaching the ultimate source of the odor, the worm began to feed, filling itself with the contents of the young woman's intestines. The creature's entire body expanded gradually as it fed, stretching the woman's distended anus further, bringing on even stronger spasms. She masturbated with increasing vigor, rubbing her dripping pussy as she savored the intense sensations filling her behind.
When the worm had finally had its fill, it relaxed, and began to slide out. The woman's anal flesh clung deliciously to the engorged shaft emerging from her butt. With this extra stimulation, the woman came, and her bowels suddenly and forcefully ejected the remaining fifty centimeters of worm from her rectum. As the woman convulsed in orgasmic pleasure, the satisfied worm slowly turned to its burrow and disappeared from sight.