One Direction Weight Gain One-shots

Birthday Wish {Niall}

Niall was surrounded by his friends, and he had just blown out 19 candles, signalling his nineteenth birthday.

"Make a wish Niall!" Louis cheered.

"Hmmmm...." Niall pondered, looking around the room. 

He swept his eyes across each of his friends who had been invited to celebrate his birthday. First he saw Liam's muscles, barely contained by his button up shirt. Then he noticed Harry's long, long legs clothed in form fitting black denim. After this he saw Zayn in an Armani suit, his cheekbones razor sharp. Finally he saw Louis, with his bum looking round and perky and his thighs stretching his Adidas sweats to the limit.

He then glanced at his own pudgy belly.

"I wish I had the body of my dreams." He thought hopelessly.

Niall suddenly started daydreaming about huge tan bodybuilders, their muscles expanding and contracting with each movement they made. He thought about towering over others, and being unstoppable.

Niall suddenly feels a warm tingly feeling all over his body, before he starts to expand. Starting with his biceps, which balloon with muscle, bursting his sleeves immediately. His friends look on in shock, with Liam looking at his own biceps, realising they had already been outgrown.

The Irish lad shoots up a foot and a half, standing at 6 foot 10, towering above his mates and growing ever bigger.

His arms were now thicker than liams thighs. Growth had started elsewhere too, with his thighs, shoulders and pecs all inflating rapidly with un-dentable muscle.

One by one, the seams in nialls jeans popped, exposing his gigantic quad muscles. His firm bubble butt then tore through his pants with an audible rip.

Now wider than a door frame and clad only in a scandalously tight pair of briefs (which resembled a thong), Niall smirked at his now tiny mates, who gulped nervously at their fat friend who had transformed into a muscle god in mere minutes.

The giant bent down, his mammoth body casting a shadow over his tiny friends, and reached a large hand toward the trembling boys....

"Niall!!! Snap out of it!!!"

Niall shook his head and saw Zayn, Liam, Harry and Louis staring at him with confusion.

"Oh course that was a dream" Niall thought bitterly.

The rest of the party went normally, although Niall no longer felt like celebrating. Soon enough the party was over and Niall was heading to bed, drifting into a peaceful sleep. His dreams were filled with food as usual. 

However during the middle of the night, a somewhat familiar warm tingly feeling spread throughout the blonde lad, who moaned appreciatively in his sleep.

Slowly but surely he started to expand, fat beginning to build up all over his body, drowning whatever muscle tone he may have had in pale, wobbly blubber. As he grew ever larger, his bed began to sink under his considerable weight, with it beginning to creak and groan under the pressure, which eventually woke Niall up.

He sat up sluggishly, not quite noticing the gigantic sack of lard jutting from his mid section. Deciding he deserved a mid night snack he waddled along the corridor, too drowsy to hear both the loud creaks of the hardwood floorboards being frighteningly close to giving way and also to notice that his love handles were softly dragging against the walls in his narrow hallway.

Opening the fridge he quickly empties a 2L milk carton, before grabbing the remaining half of his birthday cake and shovelling it down his awaiting mouth.

He moans at the taste and finishes with a satisfied burp.

His body, now satiated, began to grow once again. Niall didn't notice this on his way back to bed, only vaguely registering a snap against his own pale skin, which in reality was the stretched and abused fabric of his briefs finally exploding.

He struggles down the hallway, bloated and growing all over, his love handles nearly jamming him in the increasingly tight space. Niall is forced to turn sideways to enter his room after several failed attempts, due to his widening body. His groggy mind still doesn't register anything different. As this definitely isn't the first time Niall had stumbled back to his room, bloated, naked and half asleep.

After he is finished expanding, Niall is now a behemoth. He was a whale. He looked as though he never stopped eating. His man boobs were larger than even the most trashy boobs jobs. His ass would take up three abreast seats, and still be overflowing on both sides.

That's not even mentioning his belly, which had actually started to hang at his thunder thighs and form rolls even when standing.

The now obese lad, who weighed in at a scale busting 480lbs, snuggles back into his bed, wondering for a moment if it had shrunk, as he had not remembered hanging over both sides of the queen bed. He pushed the thought aside however, and drifted off again, dreaming once again of food. He smiled, feeling a warm tingly feeling spread through him...