Something in common after all.

"Curse or no curse that was certainly rude!" Rarity huffed in disbelief as she walked away from the office with Rainbow Dash.

"Yeah, playing with yourself like that in front of other ponies, totally uncool." Rainbow Dash agreed.

"She looks rather suspicious..." Rarity whispered calmly to Rainbow Dash and pointed to a mare, completely obscured in a cloak down the hall.

The cloaked mare noticed the attention and quickly bolted down the hall.

"Wait!" Rainbow Dash shouted as she jumped up and quickly flew toward the mare in a streak of rainbow. Rarity followed in a gallop but couldn't keep up as Rainbow Dash chased the mare around a corner. Rarity rounded the corner to find Rainbow Dash looking around confused, catching her breath.

"Where did she go!?" Rarity asked, confused.

"This is impossible. She must have escaped through a secret passage." Rainbow Dash sighed.

"Well why don't you go look around for this passage and I'll start questioning students." Rarity suggested. Rainbow Dash nodded in agreement.

As the 'clip clop' of Rarities hoof-steps faded into the distance Rainbow Dash looked around the hallway. She burst through the first door she saw and found Applejack in front of a class.

"Uh... Did anycreature see a mysterious cloaked figure come through here?" She asked.

"What the hay are you doing interrupting my class? No, we didn't!" Applejack sneered back.

Rainbow Dash closed the door and turned to a room across the hall. She stepped in and closed the door behind her. It was a janitor's supply room.

"Oh, Hi, Rainbow Dash!" Spike greeted her as she walked in.

"You didn't happen to see a spooky looking pony in a cloak come through here and go through some kind of secret passage did you?" Rainbow Dash raised her hoof to her chin.

"It's my fault! I admit it!" Spike started crying.

"Wait, what?" Rainbow Dash was confused. She went over to spike and patted him on the shoulder comfortingly.

"A few nights ago Twilight asked me to guard the secret passage to the relic room and I fell asleep on the job and now the Amory Stone is missing and that's when all the weirdness started." He sobbed. "I replaced it with a look-alike so Twilight wouldn't notice." He rubbed the tears from his eyes and sniffled.

"Amory Stone?" Rainbow Dash asked.

"It's an ancient magical Hippogriff relic, that was used in their ancient mating rituals." Spike sniffled again.

"You're going to have to tell Twilight eventually." Rainbow Dash sighed as she handed him a tissue. Spike took the tissue and blew his nose.

"I don't want Twilight to think I'm a bad friend. I'll do anything I can to help just please don't tell-" Spike pleaded.

"Anything?" Rainbow Dash interrupted. She felt a an odd sensation, like a jolt of electricity, in her head. She turned away from Spike and assumed a stretching crouched forward posture with her plot up towards Spike.

"Rainbow Dash, I-" Spike felt the 'zap' too and walked up behind Rainbow Dash. He grasped his claws into her rump. His dragon cock throbbed and hardened as it emerged from it's scaly hiding place. Not quite as long as a stallions would be but it still had comparable girth. "I've never-" he stammered.

"Just fuck me!" Rainbow Dash commanded.

Spike shook nervously as he reached down and guided his throbbing dragon cock into Rainbow Dash's pussy. He put his claws back up on her rump and dug in as he started thrusting in and out of her.

"It's so hot!" Rainbow Dash pitched her head back and let out an uncanny moan. She had never been fucked by a dragon and couldn't anticipate how much hotter the core of his body was. Not so hot that it injured her but just hot enough to deliver a sensation of pain and danger.

"S-sorry." Spike stammered as he slowed his thrusts.

"No! Don't stop. I need it!" Rainbow Dash pleaded as her eyes teared up slightly.

Spike thrusted faster and deeper with the encouragement. He started breathing heavily. He could already feel his climax approaching.

"Unh! Please don't stop!" Rainbow Dash begged and moaned.

Spike tried to slow down to prolong the moment but the change of pace just brought his climax closer. His body shuttered and he let out a whimper as he came inside Rainbow Dash. His cum was even hotter than his cock and caused Rainbow Dash to yelp in pain. He slumped to his knees with a look of shame as his cock softened.

"I'm sorry. I've never-" He wimpered.

"Oh, you're a virgin?" Rainbow Dash turned around to comfront him. She gave him a hug and patted him on the back.

"Well I was... but I really like-" Spike sobbed

"Rarity?" Rainbow Dash interrupted. "It will be our little secret." She whispered into his ear. Her marehood still pulsed and ached with anticipation.

Rainbow Dash gently pushed spike down onto his back as she traced her mouth from his ear, down his neck, down his chest, down his midriff. She crouched down on all fours as she worked her way down his body. His cock began to harden and throb again as her mouth got closer and she stroked one of her front hooves against it. Spike moaned as she opened her mouth wide and his throbbing dragon cock disappeared inside. She worked her mouth up and down and with each breath visible snakes of condensation danced off of her saliva as it was heated by his hot shaft.

"Oh, Rainbow-"He moaned.

Rainbow Dash pulled her mouth away and climbed up onto his cock, guiding it in to her pussy with a front hoof. As she awkwardly arched her body to accept his member she leaned down to Spike's ear. "Close your eyes... picture Rarity." She whispered softly.

"Mmm. Oh, Rarity!" Spike corrected himself as he closed his eyes and imagined Rarity there instead of Rainbow Dash.

Rainbow Dash moaned and pitched her head back as she rhythmic bucked her hind legs, lifting her body on and off of his piping hot shaft. The contrasting feeling of pleasure from his hard cock and the searing grasp of the heat only served to intensify Rainbow Dash's pleasure. Her pussy contracted tightly around his cock as she reached climax, bringing him to climax again along with her.

"Oh, Rarity." Spike whimpered one last time before opening his eyes as Rainbow Dash slumped down beside him and the two embraced each other in the middle of the stone floor.

"Not bad... for a newbie." Rainbow Dash panted teasingly. "Rarity is going to be a lucky mare one day." She kissed Spike on the cheek as she gently massaged one of her front hooves over his chest and stomach.

"Really? You think?" Spike's face lit up with joy at the compliment. Rainbow Dash simply nodded in reply. "You don't think Rarity will be jealous?...of this?" A tone of insecurity returned to his voice.

"It's not your fault she didn't know what she was missing out on." Rainbow Dash teased. "Besides we were under the influence of some spooky magical relic. I really have to get back to my investigation." She sighed.

"Wait! Before you go there's something I need to tell you about the Amory Stone." Spike sighed back.