In Bowser's Castle...
All of Bowser's troopers were hard at work as always. From patrolling outside the castle's walls to preparing weapons to... seeing how high they can stack cards. It wasn't really a busy day so some found time to goof around. 
Deep down below the castle, some troopers were stuck with cleaning duties. This area mostly consisted of Dry Bones, be it that they can handle the extreme heats and won't be affected by the dusty areas and dirty scents. 
One Dry Bones in particular was looking really bummed out. As he mopped the floor, he looked down at the floor with a tired look in his undead eyes. He stopped mopping and leaned against his mop handle as he started to day dream.
"Man, this sucks... I wanna be up there... in the light... around more people... instead of down here in this dark and damp place..." He was grateful to work for Bowser; his loyalty was never a problem. He just wanted to see his lord more instead of being stuck down in the gutters while the other troops get more attention. In time, he started to grow envious of the living.
He was grateful for his undead self, of course. At least he could take a bonk to the head, fall apart and come back in top shape no problem. Poison won't slow him down since he's nothing but bones and he can use his own bones as an unlimited supply of projectiles to toss at the enemy. But... sometimes, he just wondered: what if he was an alive Koopa Troopa? Dry Bones' eyes went wide as he came up with an idea. "Hmm..." He leaned the mop against a nearby wall and decided to take an early break. He headed upstairs...
He went up to the main area and saw it was pretty crowded as usual. He went to the magic wand supply room and saw the shelves were stocked with loads of different kinds of wands. He felt nervous at first as even he didn't want to do bad and take one without asking... but he really wanted to do this. He carefully walked in, took a wand and quickly high tailed it out of there to go to a nearby closet. He didn't want to go too far from the room so he can return the wand quickly when he was done.
"Okay, let's see..." Dry Bones gave a few waves of the wand and pressed the opposite side of the wand to his chest. He gasped as he started to glow white. In the silhouette of light, his form was changing, but only slightly... the mysterious light faded away but it started at his feet... light blue shoes... his yellow skin... his light blue shell that was white on the underside... yellow beak of a nose... and finally his light blue eyes. Dry Bones wasn't so dry now; he was a Koopa Troopa, in the flesh!
He giggled and nearly jumped with joy in the small closet. "Oh my gosh!! It worked!!" He blinked... actually blinked! I can blink!" He sniffed the air, "I can smell!" He pitched himself, "Ow... I can feel pain! I can ERRP!" He covered his mouth on the sudden burp, "...I can have gas! ...that's not something to celebrate..." He had to calm himself down so he could return the wand back to the supply room. He came back out and everything looked okay, so he took the time to enjoy his few hours as a real Koopa Troopa.
Further in the room, it was seen someone was in the dark corner of the room...
The others didn't really acknowledge seeing a different colored shelled Koopa Troopa. Bowser's always hiring new grunts so they just waved him off like any other minion. Dry Bones felt so safe but so nervous if anyone would question him on anything.
When he saw a fellow ally in need of assistance, he didn't hesitant and helped them.  
Even when they were goofing off, he'd jump in and join in the fun. He did a break dance move on his back, earning plenty of applause.
"YOU!"
A voice rung out and everyone looked back to see it was from Magikoopa. Dry Bones sat up and saw who yelled and felt his chest becoming heavy. "Oh no... what if he knows... no way, come on. What are the odds..."
"You!! With the light blue shell!"
Dry Bones swallowed nervously.
Magikoopa came up through the crowd and stood in front of Dry Bones, "I know what you did. We're going to Lord Bowser's room, right now."
Dry Bones' heart fell when he heard that. That feeling was new to him too and he was glad to have never experienced this sort of feeling...
Magikoopa smirked and turned, "Come now. Lord Bowser doesn't like to wait!"
With his head hung low, Dry Bones followed. 
Of course, the other troop members were confused on what was going on as they didn't know what the deal was. But they just shrugged it off and continued their day.
Magikoopa escorted Dry Bones to Bowser's room. The two stood in front of Bowser, who sat on his throne.
Bowser spoke, "That is all from you." He said, talking to Magikoopa.
Magikoopa looked up at Bowser, "But he stole my wand! I want to punish him too!"
"What did I say?" Bowser sounded stern with his words.
Magikoopa smacked his lips, "Yes, Lord Bowser."
"I don't want anyone else to see what I'm going to do to him." Bowser at Dry Bones, who was shaking nervously after hearing that last line from Bowser. He looked back to Magikoopa, "Go back to patrolling; make sure no one disturbs me."
"Yes, Lord Bowser." Magikoopa bowed, then gave Dry Bones a smirked before making a 'you're dead' motion by wiping his finger across his neck. He turned to leave, closing Bowser's door. 
Bowser stood up and walked to the Koopa Troopa.
Dry Bones kept his head down in a bowing motion to not disrespect the king by looking at him. He was shaking so much that it could have been seen. He heard Bowser's footsteps getting closer, further freighting him on what was to come. The heavy footsteps finally made it to him and he was actually whimpering at this point. He felt he was going to cry.
"Get up." Bowser said.
Dry Bones quickly stood up and looked forward at Bowser's throne. His legs were shaky but he ignored it as he listened to Bowser's orders.
"Now, explain to me what happened today. You're one of my Dry Bones right?"
He nodded a few times, "Y-Yes, my lord..."
"You snuck away to turn yourself into a Koopa Troopa huh? That's pretty brave of you."
He fell to his knees and sniffled: the tears were coming out now, "Lord Bowser, I'm so sorry!! I didn't mean to cause trouble! I just wanted to know what it felt like to be an actual being!"
Bowser was silent as he listened to the blubbering creature.
He got on all fours and bowed his head, "Please have mercy on me, Lord Bowser! I'll work triple time!! I'm truly deeply sorry!!"
"Stop it!!" Bowser shouted.
Dry Bones winced at the deep voice booming at him. He closed his eyes tightly and sniffled as he remained quiet.
"You don't have to speak anymore." Bowser got on one knee and patted the other male's shell back, "Look at me."
Dry Bones did just that...
"I hate seeing tears." Bowser very carefully rubbed a claw on Dry Bones' cheek to try to clear it of tears. He smiled, "I'm not mad... I'm just sad really."
"L...Lord Bowser..."
"My family is so big... I want to spend time with everyone but with so many, it gets a bit tough sometimes. I love each and every one of you... and I don't say it enough. I'm the one to say sorry to you. You don't need to say that. You and the rest of the Dry Bones are a wonderful part of my team. You do all the tough work my living crew can't do." He chuckled. "You guys can handle the tough stuff with ease and I am really grateful to have a team of you all."
Dry Bones was starting to relax... even smile a bit as everything seemed okay.
"No more tears, alright?" Bowser picked the Troopa up by the sides, gave him a soft look and brought him closer to kiss him... right on the lips.
Dry Bones' eyes went wide as he was kissed... by his lord. His body shivered again. Feeling those powerful lips on his... he was feeling a bunch of new feelings all over again. The longer the kiss went on for, the more weak he felt... which felt good. His eyelids lowered half way... then closed as he reached up to hold onto Bowser's cheeks to kiss back. He even tilted his head to try to kiss more to show his loyalty to his lord.
Bowser growled some during the kiss before parting from the smaller form. He smiled at him, "Feel better now?"
"Y-Yes sir! Thank you sir!"
"Good, because it's time to work." Bowser headed back to the throne, sat down and put him on his two feet again. "That kiss got me hot..." He sat up straight and spread his legs to reveal his meaty and flaccid penis. "Being a maid, I'm sure you can help clean this." He said, pointing to his length.
Dry Bones' blushed upon hearing such a request from his lord. "Lord Bowser...~" He was feeling more and more new feelings: lust... arousal... hunger; he was even drooling from his mouth from seeing such a hung penis. He also noted how much of a darker yellow it was from the rest of his gorgeous yellow skin color. He walked up to it without much hesitation to inspect the phallus closer. Suddenly, he was slapped... with the smell of Bowser's musky crotch. "Oh my gossssh~" He had to swallow from how full of drool his mouth was getting from the delicious scent.
"You alright?" Bowser chuckled. 
"Mhmm~" Dry Bones got on his knees and nuzzled his head against Bowser's ballsack. A single nut was nearly as big as his own head. He shivered to that fact as well as more of that musk drowning his nose. He licked the base of Bowser's cut cock... all the way up to the tip, where he gave it a kiss. He massaged the sides of it while he licked the tip. He got a full on taste of musky cock, which again, was all new to him and he loved it.
Feeling the excited rubs and licks of his follower, Bowser was quickly becoming stiff. He grasped the arms of his throne hard, nearly cracking them in the process "You're really doing great down there. Keep it up...!"
Dry Bones applied some of his cleaning knowledge to this challenge... he thought of an idea: he put both hands on either side of Bowser's cock tip and did polish motions over it.
Bowser groaned out and scooted his butt in his seat to have his cock closer to Dry Bones. He closed his eyes and started to rub his chest with his right hand, "That's it, sweety... keep going..."
His little tail wagged. "Sweety? Did he call me sweety...?!" He thought as he was smiling ear to ear. He wanted to do so much to Bowser's penis: lick it, kiss it, grind on it, hug it, bounce on it... he had to calm himself down and just keep doing what was getting the bigger reaction from his lord. His face stayed a bright red as he continued his work.
Bowser looked down at Dry Bones, "I'm gonna cum... are you fine with that?"
Dry Bones' eyes met with Bowser's, "Please, Lord Bowser... please cum on me..."
"Alright... keep going...!"
Dry Bones' motions got faster; he used Bowser's pre seed to coat his cock tip nicely to make the 'polishing' even smoother for the big hunk. Every so often, he'd give the urethra a kiss, which would earn more pre seed to play with. He giggled at this impressive leaky show and it only kept him wanting to kiss it more.
"Oh fffuck... so good..." Bowser's claws nearly dug into his throne arm. He squeezed his chest and groaned out more... even his toes curled tightly to how good of a handy job he was getting.
Dry Bones had to speak out to his hot king, "Oh Bowser... make me yours... claim me please... I'm yours, my lord!"
Bowser shot smoke out of his nose as he reached his orgasm. He roared out as his seed splashed completely over the smaller creature.
Another new feeling happened inside of Dry Bones... in his body and in his shell. His soft cock was twitching so much that it eventually started to spurt a small amount of cum. He gasped to his hands free orgasm as he began to thrust his hips forward on feeling such a ticklish feeling at his boy part. He shivered greatly as he squeezed Bowser's cock as it continued to cover him in thick and creamy seed.
Bowser sighed out, sending some more faint smoke from his nose. "Whoo boy I needed that..." He looked down and saw nothing but a standing figure in white cum. he chuckled and scratched his chin with one claw, "Uhm... hehehe... you alright? You were doing so good so I sorta came a lot..."
Dry Bones fell back...
Bowser gasped and stood up, "H-Hey! You alright??"
There was giggling heard before the sticky form sat up. He wiped his face clean and smiled up at Bowser, "I'm fine! That was amazing sir!!"
Bowser blinked, "Uhh... what's wrong?"
Dry Bones tilted his head, "Hmm?" What was happening was he was changing back to his original form. One eye was shown to look like normal... then his body was covered in another white... the mysterious white light from before when he first used the magic to transform. After a short while, the light disappeared and he was back to a Dry Bones. He looked down at his body... sighed and lowered his head.
"Hey." Bowser put his finger under Dry Bones' chin to make him look at him, "Don't think you have to change to get my attention."
Dry Bones smiled softly... 
"I still feel the same way for you... sweety."
Dry Bones may not have a heart anymore but he still felt so loved at that moment. Maybe the magic was still in him to some degree if he still felt such feelings for his lord.
"I got a gift for you... but after you shower." He chuckled. "We can't have you smelling like cum all day, can we?
"Oh... r-right!" 

***

After that day, that Dry Bones was promoted to the leader of the other Dry Bones. He wore his leader pin proud and now his days in the dark under areas of the castle wasn't so bad. If he felt down, he'd just look at his pin and remember how he got it... which brightened up his day instantly.
-End