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Penny had been hiding something for a while now, and she was beginning to worry that she wouldn't be able to keep it secret much longer. Perhaps because of her shy, reserved, naive nature, she had let this 'problem' go on for far too long. Now the swollen, aching feeling in her breasts had become part of her everyday life. What had started with some strange tenderness in her breasts and a few wet drops in her bra had turned into her pumping herself twice a day.

She had felt so uncomfortable, she simply had to express what she learned was milk. The relief allowed her to carry on like normal. What Penny hadn't realized at that time was that milk production was a supply-and-demand cycle; the more you milked yourself, the more your body was encouraged to make. When she squeezed her then-small breast and a stream of milk came out she made an appointment with her doctor.

The doctor told Penny that it was a hormone imbalance and nothing to worry about, it was fairly common. "It should clear up on its own in a few weeks."

A few weeks had passed and nothing had improved, in fact, the issue had only grown - and so had Penny. She had found the sensation of milking herself to be... quite pleasant. As she made more milk it had become downright pleasurable - very pleasurable. Milking had almost grown into an addiction. The sensitivity in her breasts had grown along with the size of them. Naturally her breasts needed to adapt to making all this milk, and so she had grown progressively along with her milk. Penny had already outgrown three bras and the ones she was wearing now were beginning to get tight. Sports bras were better, and she even considered getting a nursing bra.

As her milk production grew, Penny found her hands were too slow and time-consuming. She went out and bought a pump and snuck it back home. She didn't want anyone to know. The pump helped her aching, full breasts, but it also meant she was sucking more of her milk out... signalling to her titties to make more.

She closed her eyes as the hum of the machine filled her room. She whimpered softly as she looked down over her body as she lay on her bed. She had removed her shirt and her sports bra was pulled up and over her sensitive breasts and was bunched up above them. Her swollen mounds of flesh were resting heavily on her chest, the white ivory flesh had blue veins running from the base to the nipple showing just how full they were. Her nipples were being softly and gently sucked up into the plastic suction cups of the machine that was currently set to low. Beyond that her white skin continued down over her thin flat stomach and then met her skin tight black leggings. Underneath them though her panties were already wet with growing arousal.

Penny bit her lip and moved her hand to the dial on the machine. Level 1 felt so good, but she was so full and needed to get it out... She cranked the nob higher and the suction intensified. She moaned in bliss and relief as her milk flowed out of her body. With her breasts growing bigger and making more milk by the day... how long could she keep this secret?

Thank you for reading! Ideally the story would start much earlier than this snippet takes us. I had the idea that this would occur before she got pregnant, and then the pregnancy making the situation more dramatic.

I've left the role of the male character here wide open. I thought at first we could write about your character struggling to hide the truth of what's going on with her, and then the 'help' she receives from a man in her life. As to who the man is, the first thought I had was that it was her father. Daddy discovers her secret one day, and as her body changes, so does their relationship (big brother is also an option). Another option would be a roommate or best friend. If you have a different idea, please let me know.

Here is a link to my DPP Profile which has my kinks and limits. Obvious ones here are lactation, breast growth, breast play, pregnancy, perhaps body betrayal, or temptation.

My preference is to write through Reddit PMs. Please send me a message with your ideas about the character.