Spike awoke to a musky smell that filled the small bedroom he and Twilight Sparkle had shared since moving to Ponyville. It was a smell he'd come to dread during his life with his unicorn friend.
Twilight was in heat.
Being in heat always made Twilight crazy. *Well, crazier,* he mentally amended, recalling the incident three weeks ago when Twilight had bewitched her raggedy old Smarty Pants doll.
He heard a groan from the bed. Twilight's hooves dropped to the floor next to his basket. "Unnngh..."
"Uh...mornin', Twilight," Spike said.
Twilight turned around to look at him. Her eyes were bloodshot and her mane was a mess. "Morning," she mumbled. She smacked her lips and wrinkled her muzzle. "Ugh...something's not right this morning..."
"You're in heat," Spike said.
"That's silly," Twilight said as she stretched and yawned. "If I were in heat I think I'd..."
Twilight's ears twitched. Her tail swished. Her eyes widened.
"Trust me, you're in heat," Spike said. "It's not a smell a dragon forgets."
Twilight whimpered quietly, ears drooping. "Oh no."
Spike sat up, digging a claw in his ear. "Look, why don't you find a stallion who doesn't have a marefriend and, you know...take care of business? It's not like you have to worry about what ponies say. Ponyville isn't as bad about raunchy gossip as Canterlot, and you don't have Princess Celestia and your brother hovering over you all the time...just go for it."
Twilight blushed furiously. "SPIKE! How could...how could you say such a thing?!"
Spike gave her a half-lidded stare. "Twilight, every time you go into heat, you get crazy. And after that whole mess with the stupid doll, you've used up your crazy allowance."
"I said I was sorry..." Twilight muttered, poking the floor with a hoof.
"You've got a protection spell in one of your books, right? You can have sex without worrying about getting pregnant. There's a few guys in Ponyville you could probably have a good time with, and they wouldn't talk. Just...just go for it."
Twilight laid on the floor, stretching her hooves out in front of her and her tail straight behind her, turning her head slightly away. "It's...it's not that simple," she said. "I'm...I'm scared."
"That's natural," Spike said. "Everypony's scared their first time."
"It's not that...well, it's partly that," Twilight said. She shuffled her hooves nervously. "I'm..."
Spike got up and padded over to Twilight, rubbing her back soothingly. "What is it? You can tell me."
"I'm scared of penises," Twilight said.
"You're...scared of...penises?" Spike asked.
Twilight nodded. "They just...look like they really hurt," she whimpered.
Spike shook his head. "Sheesh..."
"Well they do!" Twilight cried.
"So get one of those toys they make for needy mares," Spike suggested. "They make some pretty non-threatening ones."
Twilight gave Spike a sharp look. "How do you know about that kind of stuff?" she asked.
"You don't know everything about me," Spike said. Twilight narrowed her eyes, and Spike sighed. "Your mom has one," he said. "I accidentally caught her playing with it one time."
Twilight let out a strangled squeak. "I...so did not need to know that," she said. She sighed. "Anyway, I just..." She shook her head. "I don't exactly have a lot of privacy here, and I'd hate for somepony to find one of those things lying around in our bedroom...or worse yet, catch me using it. I mean, how often does Rainbow Dash just fly right on in here whenever she pleases?"
"Hmm, good point," Spike admitted. He twitched his tail idly as he scratched his chin. "Maybe try with another mare? That solves the whole penis problem..."
"That's even worse!" Twilight shrieked. "I don't want that kind of reputation! There's already so many rumors around town about Rainbow Dash and Applejack and I know for a FACT neither of them is...you know..."
Spike sighed and shrugged. "I dunno what to say then," he said. "I really wanna help you get over your heat before you go nuts, but I'm completely out of ideas."
Twilight stood and trotted over, gathering Spike up in a hug. "Thank you for worrying about me, Spike. Really. Even if it's just so I don't get on your nerves during estrus season."
"But seriously," Spike said as Twilight let him go, grabbing his tail and idly wringing the tip as he talked, "you shouldn't be afraid of having sex. It's perfectly natural. I mean, you and Shining Armor wouldn't be here if--"
"I know all of that, thank you," Twilight said, the color draining from her face. "I'm just not...ready to..." She trailed off, staring at Spike. Specifically, at his tail. Specifically, at the flat, tapered tip of his tail.
Spike frowned. "Twilight? What's wrong?"
Twilight crouched low. "Say, Spike...you say you want to help me get over my estrus..." Her eyes were half-lidded and glinting ominously.
Spike gulped. "Uhh...Twilight? What..."
Twilight seized the tip of Spike's tail in her magic and turned it this way and that, studying it. "This isn't sharp or anything, is it?"
"Well...it can be...or it can be flexible..." Spike wiggled his tail out of Twilight's magic, frowning. "Why?"
Twilight gave him a bright, half-crazed smile. "Spike, I've got an idea!" she said in a chipper tone of voice.
"Um...okay?"
Twilight stretched like a cat, ears perked straight up. "I'm going to have sex with your tail!"
Spike blinked. "WHAT?"
"It's perfect!" Twilight said. "It's flat at the end, so entry will be easy, and it's tapered, so penetration won't be...too painful. It's no thicker than the average stallion's penis, and you can wriggle it around...that should feel pretty good..." She clapped her hooves. "It's perfect!"
Spike folded his arms. "You're nuts."
Twilight gave Spike a sly, half-lidded smile. "You know," she purred, "it'd be nice if you knew a good way to make a mare happy, if you ever have a marefriend...like, say, Rarity..."
Spike facepalmed. "That's just despicable," he grumbled.
Twilight pranced in place. "Oh come on, Spike!" she whined. "Just put your tail in me! Then we can both get on with our lives." She turned her back to Spike and raised her rump, lifting her tail and presenting herself.
Spike stared at Twilight's sex, face flaming. He'd seen Twilight's private bits plenty of times, of course; it was impossible to live with an unclothed pony for years without knowing what every single inch of them looked like. He'd never even really thought about Twilight's twat before. It was just there, like her tail or her cutie mark.
But now, she was presenting herself to him. Her clitoris peeked out. She looked back at him and wiggled her butt. "I'm waiting," she said.
"Um..." Spike gulped. "Small problem. I don't...really even see how I can get my tail in there and...and do anything that you'd, um...like."
Twilight frowned. "Hmm...that's a good point." She tapped her chin with a hoof. "Ah! I know!"
Spike felt the uncomfortable prickle of teleportation magic, and had no time to protest before he was lying on his back on the edge of Twilight's bed. Twilight backed up against him, butt raised high. "I'll guide you in with my magic," she said. "And you use your tail muscles to...well...just do whatever you want to do." Twilight blushed.
Spike stared at her. "You...you're really serious about this?"
By way of response, Twilight wrapped Spike's tail in her magic and pressed it up against her opening. Spike stared, fascinated, as the spade-like tip of his tail parted Twilight's pussy and was sucked in hungrily. Twilight shuddered and gasped. "Oh...goodness..."
"It doesn't...hurt, does it?" Spike asked.
"It feels...really good," Twilight panted. The prickle of her magic intensified, and Spike watched as more of his tail disappeared into her snatch. "Wiggle...wiggle it around..."
"A-alright," Spike said. Taking a deep breath, he started wriggling his tail. Twilight moaned, her hips bucking as she thrust her rump against the bed.
"AHHH!" Twilight moaned raggedly. "More! MORE!"
Spike thrashed his tail in the tight, hot tunnel of Twilight's sex, flicking the tip against her inner walls. Twilight cried out, thrusting forcefully against the bed. Hot, slick juices coursed down the length of Spike's tail, dripping out of Twilight's pussy as he writhed inside her.
"HARDER!" Twilight screamed.
"I can't!" Spike said. "You're too tight...! I'm doing the best I can!"
Twilight snarled in frustration and lifted Spike off the bed with her magic. He yelped as she began pounding him into her. He kept wriggling his tail and stroking her tight, hot love tunnel with the tip as he was jerked back and forth so violently he felt as though he might throw up.
"Ahhh...! AHHHH!" Twilight cried. "Yes! YES!"
"Twilight...stop...I'm getting sick..."
"Just a little...nnnggh...more!" Twilight panted, slamming her rump repeatedly against the bed while driving Spike into her pussy like a jackhammer. Just as Spike finally lost the battle with nausea and threw up all over the bed, Twilight let out a loud, lustful whinny. Her concentration shattered, the magical hold on Spike broke, and he fell, sliding down the side of the bed, headed for a nasty meeting with the floor...
...and stopped.
He looked down at the floor, inches away, then up at Twilight's butt, hovering above him. His tail was still inside her, and he was swinging slowly back and forth.
"Uhh, Twilight?"
"Y-yes, Spike?" Twilight panted.
"I think...I think I'm stuck," he said.
"I know," Twilight grunted. "Your tail...turned on the way out...give me a second...catch my breath...I'll help you get loose..."
"Take your time," Spike said, folding his arms and staring up at Twilight's butt. "Um, so...did you...like that?"
"Y-yes," Twilight said heavily. "Th-thank you for...for letting me..."
"Don't mention it," Spike said. "It's the least I can do. Just...don't make me do that ever again." He paused. "Or at least, don't shake me so hard I throw up again next time."
Twilight looked over her shoulder at him, blushing. "N-next time? Y-you'd really...again?"
"Well yeah," Spike said. "Other than the shaking and the throwing up, it was kinda fun."
Twilight smiled, eyes shining. "Spike..."
"What the HAY is going on here?!"
Twilight's head jerked around; Spike felt her stiffen in shock. "R-rainbow Dash!" Twilight said, laughing shakily. "H-how nice to see you...in my bedroom...without knocking..."
"Twilight...I know I'm gonna regret asking, but...why is Spike hanging out of your twat?"
"I'm stuck," Spike muttered.
Twilight's magic wrapped around Spike; his tail turned, uncatching and sliding out, and she deposited him gently on his feet.
Twilight gave Rainbow a sheepish look, ears drooping. "Um...Spike was helping me with...with my estrus..."
Rainbow blanched. "That's pretty sick, Twilight."
Twilight ducked her head. Spike stepped up beside her. "It's not sick," he said. "It's being a good friend."
Rainbow crossed her hooves and stared flatly at the two of them. "Yyyeah...if I were you, I wouldn't write a friendship report to the Princess about this."
