This one will feature someone nobody saw coming. A female Iron Will. Let the mayhem commence. Also, the inspiration for this chapter is from this pic: https://derpibooru.org/48036?scope=scpe0195deaa04e432d2df8514877eb3402781d11c7e

"Come on! Lift that thing!" shouted the person next to Spike as he was currently on a bench press and was trying to life the large weight up.

"I..It's too much." strained Spike who was feeling his arms lowering it.

"Don't give up! If it comes down hard, you push it far!" screamed the voice. Sound familiar? It should. This feminine voice came from Brass Knuckles, a motivation speaker who tried to help Fluttershy, but her methods worked a little too well. After that encounter, Brass Knuckles decided to help at the local gym by motivating ponies to get fit. Which really helped them as more and more mares and stallions were getting pumped up.

Spike had enrolled as a new member and was getting extra lessons from her considering his short stature.

"Come on! One more push!" yelled Brass. She was a tall and slim Minotaur with lavender fur on her torso, arms, head, and tails. Her legs and Mohawk were purple with the tuff of hair on her tail being the same shade. She may have a curved figure, but she also had visible muscle.

Spike closed his eyes and used the last of his strength to push the barbell up and onto the bench press, keeping it in place. Spike was relieved the extra weight was off and began to take in as much sweet air as he could.

"Good job. Now we move onto the treadmill." replied Brass as she walked over and set the right settings before letting Spike get on. "And just to make sure you got it, I'll be running right behind you." replied the Minotaur.

Spike nodded and began to run on the machine while Brass managed to get behind him and did the same exercise as himself. Though Spike did notice her soft fur whenever he got too close to her.

'Man, why did she have to have soft fur?' thought Spike who shook the thought off and kept up his pace.

Eventually they finished running and went for some water bottles to drink and recover energy.

They guzzled the water down with vigor, but Spike noticed some of the water splash onto Brass's chest.

He quickly looked away with a blush as he drank his water to calm down.

"OK, now we're gonna do some old fashion wrestling." barked Brass.

Spike gulped upon hearing that.

Brass got into the gym's ring and turned towards him. "Come on, let's see what you got."

'Dear mother...If I don't make it...please...please castrate Blueblood...' Spike thought. He got in a ready stance as Brass made the first move.

Brass went for a clothesline, which he avoided to the side before kicking her back, making her flinch.

"Not bad, but not good." this time she managed to get him into a headlock.

Spike scowled as he tried to get out of the trap as Brass kept applying force.

"Care to throw in the towel?" asked Brass.

Spike grunted some more but then resigned and nodded. Brass let go as Spike took a moment to catch his breath.

"Are you alright?" She asked a bit worried.

"Yeah, just not use to this." he replied.

She nodded upon hearing that.

"Gotta say, you're pretty tough." complimented Spike.

"Of course I am!" She said proudly.

"But how feminine are you really?" teased Spike.

"What's that supposed to mean?!" She asked him darkly.

"Can you do what other girls do?" asked Spike.

"Like what?" She asked curiously.

"Pose." grinned Spike.

Brass blinked before nodding and doing as told, making Spike blush.

"Like this?" she asked with a wink.

"Y-yes." He answered.

Seeing how it looked like he was shy, she decided to see how far she could go.

'Well then, let the games begin!' She thought with a grin.

She walked over to her bag and 'accidentally' bent down to where her butt was in clear view for the young dragon to see.

'D-d-dat ass!' Gasped Spike before looking away.

Brass stood up and was satisfied to see the blush on Spike's face.

"How was that~?" She asked while grinning.

Spike just looked away while praying his blush calmed down and fast.

'Calm down, calm down, calm down...' He kept repeating in his mind. He was fighting a losing battle at this rate.

'What do I do?' He thought to himself.

He could either run out of there, or he could just say buck it and live.

Then the choice was made...

"I'm gonna show you how to ride a dragon." grinned Spike.

Brass froze up upon hearing that before blushing.

"Can you handle it, little man?" teased Brass.

"Of course!" He answered.

Brass grinned and lead the way to a private shower room with Spike following behind and closing the door. Soon some moans were heard inside the shower.

All ponies who walked by the room blushed and tried not to stay near it for too long.

Eventually we can see an exhausted Spike and a grinning Brass walk out.

"Now that was a ride." grinned the Minotaur.

"Y-yeah..." Spike said with a blush.

"So, think we can make this a regular thing?" she grinned while hugging him against her chest.

"Y-yeah...but I would need to train more..." He answered.

"Don't worry, I'll boost your stamina in no time." grinned Brass.

Spike blushed upon hearing that but nodded.

(Omake)

Spike and Brass were right now training alongside Fluttershy, who wanted to be less shy.

As it was going on, the meek pony couldn't help but notice Brass and Spike seemed very close throughout the training.

'I wonder what's going on?' She thought curious.

"We'll be right back Fluttershy. I think I forgot something." spoke Spike before both of them headed to one of the storage rooms.

Fluttershy got curious and thus decided to follow them in secret. She carefully opened the door and blushed brighter than a tomato at what she was seeing.

Both Spike and Brass were making out with the latter holding the former.

Sadly, the door made a creaking sound when she pushed it open.

And thus both couple and shy pegasus looked at each other awkwardly.

"........care to join?" spoke Spike.

Fluttershy just nodded shyly.

She closed the door as Spike showed them the 'right' way to ride a dragon.