A dip in the pool

Korra needed a break. Weeks of 'training' and 'bodybuilding' had taken their toll on the young Avatar's energy. Hours upon hours of strength training, hefting ever more massive weights until her arms were sore, and bending practice, going through forms to move more and more of the elements, were punctuated by food. Initially, Korra had set out to put on a little weight in the hopes of building muscle, but as the pounds piled on "cutting" was forgotten as "bulking" became the order of the day. At first, her friends and mentors were shocked at her physical changes, urging her to cut back on stuffing herself silly. But they couldn't deny that the significantly stouter Avatar had become more powerful than ever. Powerful muscles rippled through her mighty arms and massive legs, and she retained a mobility that belied her size. Despite measuring nearly as wide as she was tall, with a bulging belly packing as many pounds again as she had started with, her pulchritudinous shape was as graceful in motion as it was devastating in impact.

But all that work, and the physical shifts that resulted, had tired Korra out. Her arms, worn from weightlifting and bending disciplines, hung low at her sides. Her overstuffed bust gently rose and fell as tired lungs tried to keep her overworked body working. A straining stomach, overstuffed even by her standards, felt taut and tight. Thick thighs rubbed against each other as she dragged herself forward. The only thing that kept her moving was the knowledge of the relaxation ahead.

Realizing that the Avatar needed some facilities to sustain her ever-more compulsive habits, Asami Sato had kindly let Korra use the Sato grounds whenever necessary. Right now, Korra had one spot on her mind - the hot tub. A relatively new technology, this heated bath allowed for deep, calming relaxation to sweat out any worries.
Korra had already squeezed into her swimsuit. A traditional two-piece water tribe affair, it gave her the modesty and support she needed while still leaving plenty of room to grow (and gorge). Korra swung open the double-doors, necessary if she was to fit through the ever-smaller entryway, and gave a sigh of relief at seeing the tub. A quick blast of firebending lit the heater, and a bit of fire-, water-, and airbending soon had the water's surface rippling and bubbling nicely.

Korra eased herself into the warm water, blissfully closing her eyes as the soothing water ran over her tired body. Knotted muscles relaxed and untied as she dangled her limbs in. Although her girth was now too large to be submerged entirely, the waves lapping at the side of her potbelly relieved the tightness she had felt from her earlier stuffing. Korra had only been in the tub a few minutes when she heard one of the doors open. Looking over, she saw the familiar curvy shape of her friend Asami Sato and waved her over.

---

Asami had been undergoing some changes of her own. Initially flabbergasted as Korra's once-slender and fit figure ballooned to her new mountainous, indulgent proportions, she eventually gained a new perspective: Around Korra, she'd always be the skinny one. Seeing the opportunity to relax her diet, Asami's svelte body began to soften and grow. Though she made sure to stay far from reaching Korra's mammoth proportions, there was certainly more of Asami than there was before. And the new weight was going to all the right places - widening hips and a swelling derriere combined with a billowing bosom to give the young heiress a developing hourglass shape. Although she would rather do without her more rounded belly and the occasional fat roll, Asami couldn't deny that she was loving the new way she filled out her fancy outfits. Even the way she carried herself was changing - her walk became a sashay, emphasizing the show down below.

Asami walked into the pool room, her curves tightly accentuated by her form-fitting swimsuit. Korra was waving her over, inviting her to share in the warm relaxation.
Although it wasn't as shocking now, Asami still was slightly taken aback by her friend's proportions. Truth be told, she wasn't sure if she'd ever get used to the new Korra. The corpulent young woman filled nearly half the tub. A peek of bloated paunch showed above the water line, hinting at the true size of her vast body. What did show was also of ludicrous size. Crammed into a too-small top were a pair of breasts nearly the size of Korra's head, and even while relaxed her powerful arm muscles were clearly defined. Her face looked mostly the same, albeit with noticeably more padding.

Taking her towel off her shoulders, Asami sat on the rim of the pool. Surely she would never - could never - become so immense. She liked being able to fit through a single door, sit in a single chair, to wear all (most, if she was honest) of her old clothes, to see the sway of her hips without having them overcome by the bounce of a belly. Still, there was something enthralling about her friend's colossal size. The way she seemed so alive, so powerful, so... larger than life.
'Maybe a few pounds more,' thought Asami, as she slipped into the warm water and felt the bubbles trace her voluptuous shape, 'just to see what it feels like.'