Spike's Weighing Desires

Spike walked through Ponyville with Twilight by his side. It had been a long day of errands and tasks that Twilight just had to drag him along for. Spike couldn't get his mind off of that potion though, and pulling an all nighter made him tired and irritable. All day Spike could hardly wait to get home so he could start working on his elixir. He rushed from place to place, wishing time would just speed up so he could go back to his room and prepair.

"Why are you so fidgety today Spike?"
"How come you want to go home so badly? We've hardly been out for an hour..."
"What's wrong Spike? It's unlike you to turn down a cupcake."

Questions like these had become commonplace throughout the day, and Spike was really starting to get sick of them. His thoughts were interrupted when he heard Twilight speak "Wow it's that late already?" She said as she watched the sun beginning to set.
"I guess we should really be getting home, huh Spike?" She smiled at him, knowing he had wanted to go home all day.
"Yes!-" Spike blurted out "Uh I mean, sure Twilight we don't want to be out too late" he quickly corrected himself. Twilight giggled at his antics.
"Okay my number one assistant, lets head home." Twilight smiled, as she and Spike set their course for home.

Spike felt his heart beat faster and faster as he got closer to home. The sun was setting behind them as the final traces of daylight covered Ponyville. Finally the library was in view, Spike had to try really hard to prevent himself from just sprinting to the door. At the door, Spike could feel sweat running down his forehead, as Twilight magically grabbed the key and twisted the lock, opening the door.
"Thanks for the nice day out Twi, gotta go now, bye!" Spike shouted quickly running up the stairs and into his room. Though Twilight was curious she decided to let Spike have his space. It was obvious something was up, but she knows what being a teenager was like, and so she left Spike alone.

Spike quickly grabbed some materials from Twilight's botany lab. He didn't like stealing from Twilight like this, but he took only what he needed for the potion and its counter. He made his way back to his room, where he had already begun to set up a makeshift alchemy lab. The sun's last rays entered the room as Spike re-lit his candles, filling the room with artificial light.

Spike then laid out all the materials he was "borrowing" from the lab. He then opened his book to the page he had bookmarked the night before. He was finally ready to make this potion. He added each ingredient, being careful to use precise amounts and not to spill anything. Spike knew from experience that if a potion was even a little bit off, it could have drastic effects. With all the reagents neatly added to the flask, Spike slowly started to heat it up with a sustained burst of dragonfire.

After mere moments of heating the potion began to glow a deep blue color. This was just what the book said the potion would look like. Spike couldn't believe how easily the potion was made. The counter potion wasn't difficult either, following almost all of the same steps. Spike became aroused thinking of the effects of the potion, he couldn't handle the excitement anymore so he quickly corked the counter potion flask and brought both flasks over to his bed.

Spike laid down slowly on the mattress, making sure he was comfortable before starting. As years went on, Spike's limbs had grown to make him look more like an adolescent dragon rather then the baby he was years ago. This was perfect however, as it made him required to have a larger bed to accommodate his new size. The bed was sturdy and huge, making it the perfect place to drink the potion. So finally, with his head up against the pillow and the potion in his hand, Spike took the plunge. He downed the potion as he felt the sickly liquid flow down into his stomach.

Spike felt his arousal grow in anticipation for his gain. The first thing Spike noticed when the potion's effects began was the overwhelming warmth filling his entire being. The warmth wasn't uncomfortable however, it was arousing. Slowly the heat began to concentrate in his belly, ass, thighs, and arms.
Then the potion really kicked into gear. Spike watched wide eyed as his belly began to feel heavier as it bloated outwards in front of him. The feeling was incredible as his belly continually pushed upwards. Spike started to rub his length, moaning, as the growth continued. As his belly moved outwards, he felt his thighs and ass start to expand along with it. This fat shortly after spread to his tail thickening it considerably.

Spike found it harder and harder to rub himself as the fat expanded his belly, making it harder to reach his dick. Spike moaned as he realised that now he was more than just fat, he was becoming obese. His sides continued to expand as they folded over, forming huge plump love handles. His thighs must have both been the width of tree trunks at this point. Spike heard the sturdy bed begin to creek under his massive weight. Over his chest a plump set of man boobs formed, only arousing Spike further. Spike could no longer reach his cock over the mountain of fat in front of him. However as his belly expanded it folded over falling onto his thighs completely covering his dick. Spike moaned in immense pleasure as he started to fuck his own fat belly.

He started to get a rhythm as he grinded his hips up and down into his own fat. With two now free hands he began groping his big belly and breasts. The expansion gradually began to slow down. But Spike was already so fat it rendered him completely immobile. Finally both Spike and the gain reached their climax. Spike groaned in intense pleasure as he came violently into his folds. He then slowly began to relax as his orgasm subsided. Moments later, Spike had fallen asleep, trapped under a mountain of his own fat, just like he had dreamed.