"There's no way all that horse-meat will ever fit," she whispered to herself, almost disappointed with what she knew to be true.
She laid her head back and felt the tip of his hot dick deep inside her cunt, and gave it a squeeze with her muscular vagina as she began fingering her clit. She looked down again, and whether it was the thrill of her fantasy realized or something else that caused it, his huge, dark prick slid even deeper.
She moaned and started to grind a bit, but it wasn't too much for her to take, and as she started thrusting against the equine cock again, he went deeper still. A full 30 cm was inside her love hole, and she felt full and wet. She started pumping, seeking to slide his thick prick in and out of herself to stimulate them both even closer to orgasm, but he only went deeper inside. Squealing with delight and pleasure at what was happening, she writhed on his thick shaft, wondering just how much she could hold, when it went even deeper.
She was now holding a full forty-five cm of huge horse-hood in her cunt, and she felt it ramming up against the back of her tunnel. She groaned and her cunt muscles started twitching by themselves, and, feeling this, the centaur pumped his dick in and out, each time going deeper and deeper still until, amazingly, she held the entire length of his huge shaft in her wet, ever-stretching cunny. When she felt his hot, velvety sheath rubbing up against her clit, she looked down again in surprise to see what had happened, and screamed with pleasure as they both started cumming.
He responded with another bout of humping thrusts. She screamed again with pleasure, and, incredibly, came even more intensely than she had thought possible.
She squeezed her eyes tightly shut, all the better to devote all her sensations to her purpose. She could feel his slippery horse-like-dick sliding in and out, in and out. Her legs sagged downward, but her swollen tunnel was still suspended on his heavenly, engorged shaft, so she continued to hang there underneath him. This change in position also angled her clit downward so that it contacted even more of his hot flesh than before, rubbing and tingling deliciously with every tiny movement. It felt so good deep within her, his huge shaft-head up where nothing had ever been before, back, it seemed, behind her stomach or maybe tickling her lungs, but she felt no discomfort, only the most intense, astonishing pleasure of her life.
She began swinging her legs back and forth, as if on a chair that was too tall for her, and the twisting motion it caused made them both shiver. She could feel his huge knob ripple back and forth, fucking her whole body as she squeezed the last orgasm out of herself, and what must have been a quart more hot jism out of the centaurs massive horse-like cock.
She savoured her impalement for a few minutes more, then, slowly, she guided him back to the raised, moss-covered bench and eased off of him, sad to give up the experience yet more satisfied than she had ever dreamed possible. The cum of both the lovers poured out of her onto the ground, and she gazed at him again, still marvelling at what had just happened.
Outside of Osa's dream, the flower pollen has saturated Osa's lungs and small vines have crept up her body and are slowly enshrouding her. The horses are immune to the sleep effect of the flower pollen and have managed to step in place to prevent the vines from grabbing their legs. As the night passes and Osa is further consumed by the small vines as she dreams of amazing sex with random people and creatures.
As the sun rises, Osa has been completely enshrouded by tiny vines, some of which have also managed to make their way a short distance into her mouth, nose, cunny, and ass. A dark shadow passes over the place where she had made her camp, then passes over again before the figure that casts that shadow swoops down, sinks it claws into one horse and bites the other in half, killing both. The dragon feasts on the carcasses of the two horses and is about to take off when it notices the food bags and water skins laying on the ground and the scent of wet cunny in the air.