Lumber jacking.

Spike was snoring softly in his little bed, Twilight laying motionless in the dark.

'What would it be like?' She thought. 'What am I thinking!?' She quickly shook her head of the thoughts.

She pulled up the covers a little more before getting onto her side.

'It... Is an interesting topic...' She mused. 'And none of my spells work on my heat for atleast an hour before wearing off.' She shut her eyes before charging her horn.

She quickly teleported out of her bed room before appearing in the lobby to the library part of the tree house.

"Ok... Should I bring parchment and ink for notes?" She asked herself. She thought about the teeth and claws. "I could always write it down afterwards..."

She took one last glance at the door upstairs, sighed and teleported out again.

A flash of lavender was present for only a second as a lavender unicorn appeared at the edge of the Everfree.

"Am I actually going to do this?" She asked herself.

Two howls went through the air, cutting through the silence like a knife.

"I guess so."

She put a shaky hoof onto the first patch of leaves.

The forest was dark, humid and had the smell of rotting flora everywhere.

She was shaking out of fear and the cold air. The only light available was when the trees had an occasional crack, letting the silver moonlight through.

Another howl went through the air. She froze, mane and tail sticking on end.

'I hope they take as kindly to me as they did Fluttershy...' She thought nervously.

She began slowly trotting again, listening for any noise.

Only, after a few more hoofsteps of crunching leaves, she realized there was no noise present.

'If the animal's stop making noise in a forest or jungle, then that means a big predator is around.' She thought. 'Good, I'm close.'

She continued again, listening for anything out of the ordinary. Shortly after, a panting was heard, before she could investigate two Timberwolves came out from the darkness and ran past her.

She gave a surprised yelp and jumped to the side, unknowingly where they had come from.

She rolled down the dirt hill, coming to a stop when she rammed into something. She opened her eyes and gasped.

Two yellow eyes were glaring at her, a foul stench coming from the Timberwolf's mouth.

She jumped off as it snapped at her. She turned around and began to run, but only to trip on a rock and fall muzzle first into some gravel.

With a yelp, she was turned on her back, now facing the beast. It snarled slightly, barring it's wooden teeth.

As it arched it's head back to bite, she pushed back with her hooves and slid slightly in front of it. When it went down to bite it only got a muzzle full of her marehood. She gave a surprised yelp while it was shocked momentarily, and then it breathed in.

As she was collecting herself, it raised its snout out and put a paw on her chest. it looked down at her expectantly, its wooden teeth showing slightly in a canine smile.

She looked down at herself and saw it's own member coming out again. She blushed as it was directly above her marehood.

'This is what you came here for, Twilight.' She thought to herself as she looked at it. 'I could always teleport out if it gets angry...'

She bit her lip before sliding back under the beast. She gave a small nod and tried to stop shaking.

It wrapped it's fore-legs around her shoulders before lowering itself into her, inch by inch.

She shivered by the new sensation.

'Subject is wide in girth-' she gave a squeak when it began thrusting. 'Long, very long, strong bodied, male and very healthy as far as observations go.'

It was a steady thrust. Each time it did so, it sent a shiver down her spine. After a while though, the shivers became moans as she was rutted.

It sped up, a thrust at a time. As it did so, she wrapped her fore-legs around it's head.

She gave a throaty moan as it went down to the base, she could feel it poking at the entrance to her womb. It sped up again, grunting now. She gave another moan, her horn lighting up.

It saw her horn and tilted its head slightly, not bothering to stop thrusting, it leaned forward and gave it a attentive sniff. It sparked slight, it tilted it's head the other way before giving it a lick.

Twilight yelped in pleasure, she looked up and saw the Timberwolf staring at her horn, it's eyes almost glazed over.

'Subject seems intrigued by either magic or light. Timberwolves sometimes hunt in the day so it must be the magic. I will let it proceed for reactions.'

She put her head up again and it immediately gave it another sniff. She shivered in pleasure and let her tongue loll out her mouth when he began nibbling a the tip of it.

While it was doing so, it began thrusting roughly into her. Taking itself out almost to the tip before ramming back in. She heard its ragged breathing but ignored it as she felt a pressure build up in her loins.

She wrapped her back legs around it, pushing more of it in, it gave a grunt before getting off her. She looked at it slightly afraid before it rolled her onto her belly. It lifted her flank up and held her shoulders down. The whole time nibbling on her horn, causing more sparks.

Her eyes were rolled up in her head, her mind clouded by lustful thoughts.

It's ragged breathing finally hit a high, its thrust became even more hard and finally it pushed into her, all the way to the base.

She felt it release thick, hot strands of its seed into her. With a scream of her own, she felt her won orgasm take over.

Her walls tightened around the Timberwolf's member, milking it for every last drop. When it remained still, her thoughts cleared enough to look behind her.

Its seed was dripping down onto the ground, already making a puddle. When it pulled out, a small trickle went down her leg.

'Subjects seed is orange in color. Possibly colored from sap and chloroform or other Timberwolves exchanging close physical contact-what's it doing!?'

It let go and gave a few barks as the second Timberwolf came forward, head low. The Timberwolf in her slid out, rolled her on her back and got in front of her, holding her down as it set all fours on her. Its fore-legs held her back legs apart so she was spread out, while it's back legs held her fore-hooves down.

The Timberwolf prowling over, was now breathing onto her. She shivered in silence as it started to sniff around where her marehood was.

It gave a lick there and received a moan from her. It tilted it's head before doing it again. The same result.

It stuck it's muzzle into her marehood, making her arch her back in response. It began to lick, its leafy tongue brushing every part of her.

Twilight continued to moan, looking up, she saw the Timberwolf pinning her down. It's member was still sticking out, just hanging there in front of her. She blushed before taking a small sniff.

It smelled like pine, but she also smelled her own juices on it.

'I'll call you subject one.' She thought. She gave another moan as the one in front of her licked her bud. 'And you'll be subject two!' She thought fervently.

The Timberwolf licking her stopped and gave a bark. The one holding down Twilight turned around and sat on her chest, it's member sticking directly in Twilight's face.

She blushed again seeing subject one's rod sticking out in front of her. She could feel the heat coming off from it.

'I wonder how it would react...' She thought.

She leaned forward and took the crown in her mouth. The Timberwolf sitting upon her, yelped and looked down in curiosity. It relaxed and let her continue.

She had taken a little more of it in now, and gave a moan when she felt subject two's member enter her.

She began to bob her head, slowly to give it as much pleasure as possible.

She started to bob faster, taking more and more of it in. She leaned forward and took in nearly half of it, held and after a few seconds, let go and took in some air. A thin trail of saliva connecting it and her lips. She leaned forward and began bobbing again, sucking at it.

Subject two was speeding up quickly,pumping in and out of her viciously. It pulled her up slightly, not disturbing her upper torso. It kept thrusting, it's wooden rod sliding in and out with ease. She felt her own orgasm start to build up again.

Subject one began breathing raggedly when it's front paws wrapped around Twilight's head. Her eyes widened in shock as her head was forced forward.

She could still breath slightly, it was more narrow than wide, but it went down her throat a good way.

It pushed itself forward slightly after letting her head back. It pulled forward and her muzzle was at the base of its member, she blushed but was otherwise unharmed. It looked down and gave a small snort.

She sucked as best as she could, even as it held her head she was still able to get a good amount of suction.

Her ears raised when she head the dual breathing of both of them, she knew what was going to happen.

Subject two gave a howl and pushed as far as he could into her. She felt his seed fill her to the base before leaking out from the sides. She orgasmed shortly after, milking him as best as she could as her body was racked with tremors.

Subject one had also reached his climax. He gave a howl and held her head in place, thrusting his hips slightly as his own seed went coursing down her throat. She swallowed as much as she could, eventually letting it fill her cheeks before swallowing in gulps. It pulled out and let a few small streams fall on her face.

She laid there, watching them. She stared in wonder as they seemingly fell to pieces, a yellow glow coating them.

'I think I have enough research.' She thought. 'Time to get back and clean up. Wouldn't want Spike seeing this.'

She charged her horn and teleported back to the library. Not noticing the sounds of a merry humming from afar.