It was a bright Saturday morning as Kelsey went to check her mail. She was still in her pajamas—which amounted to a bathrobe and sweatpants—since she didn’t plan on doing anything today. Opening her mailbox, she discovered the usual junk and one package that caught her attention. It was a nondescript box, with no sender’s address.

Walking inside, Kelsey dropped the rest of her mail on the counter and took the box with her over to her kitchen table. She eagerly tore the box open to discover a large white gem. She held it up, examining it. The first thing she noticed was that the gem was completely smooth, with no sharp edges from being cut. It was kind of tear drop shaped, thick and round at one end and tapering to a point on the other. One side of it was somewhat flattened, forming a somewhat half-circle shape, as if to lay it against something. She thought it felt like there was liquid inside it as she moved it around.

Well this is really pretty, but I’m not sure what to do with it, she thought. Then she noticed that the pointed end had a hole in it. “Ooooh, I could make it a necklace! Now I have something to do today, at least.”

Kelsey strung the gem on a sturdy leather cord and attached a clasp to the ends. She hung the necklace around her neck and looked in one of her mirrors. “Oh, I love it!” The flat side of the gem rested against her chest, somewhat resembling a small white breast. “I think I’ll wear it today, I just have to get dressed.” Kelsey sauntered into her bedroom, her small B cups seemingly moving more than usual. She removed her bathrobe, ignoring that her breasts looked somewhat larger, thinking it was just time of the month swelling. As she stood up from removing her sweatpants, she knew that this was more than just some swelling. Kelsey felt her breasts with her hands and estimated them to be D cups.

“Okay… my boobs are growing… Why? The gem?” She looked at it again. “It does… kind of look like a breast.” She tried to unhook the necklace, but found that the clasp was gone- the necklace was just the leather cord all the way around. It was too tight for her to get it over her head without unclasping it. Kelsey tried her last option, grabbing the gem and trying to tear the necklace off. She wasn’t strong enough to break the cord, her G cup tits wobbling with her exertion.

“Big tits are cool... Kinda wish I got them in a less weird way though…” She accepted that there was no way for her to get the necklace off, and just let the apparently magic gem do its work. The growth accelerated, her breasts suddenly expanding to volleyball size. Her breasts kept growing, the bottoms of them quickly approaching her navel. In a few short moments, they were past it, now approaching her hips. Her boobs were a foot thick at this point, capped by steadily thickening nipples.

As Kelsey’s huge and growing boobs began to cover her thighs, the world around her began to change. Instead of her bedroom, Kelsey was standing in a huge marble temple. The chamber was huge, with a lower entryway two hundred feet square, with high steps leading up to the platform she now stood on. There were two fountains, one on each side of her, but there was no water flowing through them. A feeling of fullness suddenly pervaded her breasts.

How am I not being pulled down by these tit-mountains? Kelsey wondered. Her swelling breasts were rapidly approaching her knees. By now, they were over two feet wide each, with close to two feet of flesh separating her chest from her fat, plumping nipples. The nubs hardened as her tits suddenly made contact with the cold marble floor and the fullness was released as two rivers of milk exploded from her nipples, the creamy liquid flowing down the stairs. She cried out in pleasure as the milk gushed from her tits. Kelsey had never known her nipples could be as sensitive as they were now. Her boobs kept growing, the gigantic breasts now spreading out across the floor. Kelsey suddenly could feel their weight and knew that she would never be able to move them on her own.

Her boobs took up more and more of the floor, her nipples moving further away from her as they continued their milk deluge. Slowly her tits stopped their growth, coming to rest at four feet wide and five feet thick. Her nipples now were huge, three inches wide and long, constantly releasing a thick stream of milk. Suddenly, Kelsey noticed her milk was flowing through the fountains. Below her, she saw what looked like religious leaders on the temple floor.

I’m a breast deity, she realized. A goddess among humans.