This story contains a female with a large penis putting said penis up a male's butthole. If you are not into that then don't read this story.
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The Tower was located high up in the Grall Mountains above the village of Celstia. Celstia was a large and prosperous town, the last such town on the west side of the mountains. Many adventurers stopped by Celstia to resupply before heading into the mountains and the Great Plains beyond.
The townspeople just referred to it as "The Tower", it probably had a name at one point but it was lost generations ago. No sane person went near it as anyone who had couldn't recall what they had seen or done inside.
Made up of dark stone, it rose a dozen stories up into the air. The bottom floor was just one large circular room, with a grand staircase winding clockwise around the outside. The next 9 floors were a variety of layouts and rooms. The 11th floor was a huge master bedroom, with a massive bed that could hold 4 people comfortably, and several large couches and chairs. Thick rugs covered the floor.
Despite the obvious age of the tower and the furniture, it all appeared brand new. The wood frames were sturdy and polished, the rugs were still brightly colored and plush. The sheets and cushions showed no signs of moth damage.
This was because of the magical barrier around The Tower. It prevented the aging or decay of any non-living thing inside of it.
There were more effects of the barrier. One was an intricate healing spell that kept anyone inside from suffering any serious injury or feeling pain.
The next was a memory loss spell. As soon as you exited the barrier, you'd lose all recollection of being inside the tower.
And finally, the main purpose of the barrier. Once one entered the barrier, changes started to occur in the body and mind. Any female who entered would suddenly sprout a penis, a large one. She would become much more dominant and forceful, wanting to use her new cock on anything and everything she could.
Any male who entered would suddenly find themselves becoming much meeker. They would start craving cock in their mouths and asses and will do anything anyone asks of them. These effects took a few minutes to take hold however, and one who stepped in and out immediately would not suffer any of the effects.
Since the townspeople never come up the mountain and experienced adventurous understood to stay away, the only visitors The Tower ever received we're arrogant and headstrong young adventurers who were mostly misogynistic pigs that liked stacking their groups with pretty young girls. The results are predictable.
"Hurry your slow ass up Darla" Gavin Fellow yelled over his shoulder. The son of a prominent merchant in the capital, his daddy had bought all his gear for him when he turned 18 so Gavin could go out and explore the world. A spoiled brat with longings for adventure and treasure hunting, he managed to convince the down on her luck Darla to accompany him with promises of fabulous wealth to be found in old ruins.
"I'm trying!" Darla yelled back, "why did I agree to following this asshole, I should have just become a prostitute like mamma said I should" she added under her breath. She was certainly attractive enough, a fit and athletic body complimented by decent sized tits which were pushed up and presented rather nicely by the armor Gavin provided her. She flicked a strand of her long blonde hair back behind her ear as she huffed and puffed up the mountain.
She arrived at the top out of breath, panting with her hands on her knees.
"Let's go in!" Gavin said excitedly "I bet there's tons of treasure! Those no good dirty ruffians at the tavern are gonna have such a sweet look on their faces when I come back rich as hell!" He bounded towards the door, his expensive cape billowing in the wind behind him.
"Bah! What is this?" He growled as he perused the plain clay dishes and simple wooden furniture on the bottom floor. "There's no treasure anywhere here" he complained.
"It's probably all at the top Gavin" Darla said exasperatedly.
"Then let's get moving! Quit wasting time would you?" He shouted as he took the steps two at a time.
"Or maybe those guys at the tavern were right and there is not damn treasure up here..." she muttered to herself as she started up after him.
Darla finally caught up with him around the 10th floor where he had yet to find any treasure of note.
"What the fuck?" He raged.
"It's pretty close to Celstia, other adventurers must have gotten here first." Darla said, rolling her eyes. She's told him this four times already. But he was so sure that the townspeople's warnings meant that no one had taken anything from here yet.
"Hey uh... Gavin? I'm starting to feel funny." Darla said as they climbed the stairs to the 11th floor.
"Are you that weak?" Gavin scoffed, giving her a disappointed look. The look on his face changed to one of concern as he said: "Wait, I'm not feeling right either. Let's rest in these chairs up here. Maybe we have altitude sickness."
Darla collapses onto a couch, grasping her chest and she felt a tightness envelope her. Suddenly she felt a burning sensation in her groin. She felt trapped. Without thinking she reached down and yanked off her lower armor and pulled her pants down. She leaned back and sighed in relief until she felt the breeze on a part of her that she wasn't used to feeling. She glanced down and let out a scream.
Gavin's Head whipped around. "What is it?" He exclaimed. Then he gave a little cry too when he saw it. A penis, growing from between Darla's legs. It was already almost a foot long and still growing.
Despite feeling the revulsion he knew he should be seeing at this, Gavin felt more turned on than anything. In fact he was feeling less repulsed by the sight and growing hornier and hornier. His mouth started to water staring at the thick piece of girl meat. Without thinking about it he stood up and moved over to her. He got down on his knees and eagerly took the head of Darla's cock into his mouth, making her yelp from the new sensation.
He sucked for all he was worth, like it would provide him with his last meal. What he lacked in skill and experience sucking cock, he made up for in enthusiasm. But now something was awakening in Darla. Gavin's mouth was so warm and inviting, she wanted to go deeper, to hear him choke on her cock.
She moved her hands down to his head and started dictating the movement of his head.
"Oh yeah. Fuuuuck I have no idea what's going on but I fucking love it" Darla moaned. Gavin tried to say something similar, but his mouth was a little too full for words.
Darla stood up and held Gavin's head tight. She wound up and started thrusting her cock in and out of his mouth.
"Oh god yeah, you fucking take it you piece of shit! You've been treating me like garbage this whole fucking trip! Now I'm in control bitch." Darla screamed as she picked up the pace, truly face fucking Gavin.
Gavin was loving every second of it. His cock was rock hard and pushing painfully against his codpiece. He couldn't breathe from the constant throat invader, and he jaw felt like it was going to come unhinged, but Gavin wanted more.
Darla was fucking his mouth at top speed now, her large balls slapping his chin so hard it was hurting Darla. She could feel the cum boiling up in her balls, traveling up her long shaft.
With one final huge push, Darla shoved the last few inches down Gavin's throat and released her seed basically directly into his stomach.
Jet after jet came shooting out, with no end in sight. 5 second, 10 seconds, 15 seconds she kept pumping cum down Gavin's throat.
