They continue to chat

Sarah: "Anything, huh? Well, i urgently need new clothes, mom. I kinda had a, well..., uhmm..., a growth spurt."

Sarah's mother skeptically looked over her daughter, but she honestly couldn't detect a difference to her usual height. "Honey, i know how much you would like to gain a few more inches, but i really don't think that it will happen anymore. Growing at your age is highly unusual. And besides, we can't all have legs like those tall models at fashion shows. You have a lot of other lovely qualities, and you know it. So what is the real reason? Is another party coming up?"

Sarah's face took a light shade of red. She didn't like to be reminded of her height issues. She was a tiny bit on the short side, with her 5 feet and 2 inches, and while she often had wished for just a few more inches in the past, it just hadn't happened. She had stopped growing in height at the age of fifteen. Besides, she had learned to live with it by now and often compensated by wearing high heels. "Mooom, you know i got over that." On the other hand, her mother didn't know how right she was about Sarah's other lovely qualities. "It's not that..." There was no other way to say it, so she just did it: "And it's not my height, it's my breasts, mom. They have kinda grown over night. I need new bras. And other fitting clothes."

Monica was still skeptical. This wasn't the first time for Sarah to come up with excuses, and she always urgently needed new clothes. "Oh. Really?"

Now Sarah got even more annoyed for not being taken serious. "Yes mom. Look at my cleavage. I can't even close the bathrobe properly!"

Monica: "Oh. And you are not wearing a push up bra?"

Sarah: "Arghh, no mom, i'm not wearing a bra. These babies are all natural. Look!"

To show her mother that she was one hundred percent serious, Sarah used her hands to push up her breasts, emphasizing her bust-line and cleavage, and her tit flesh spilled out of her bathrobe, leaving only very little to her mother's imagination. However, she had not considered the new sensitivity of her "Growth X"-enhanced assets: The pressure of her hands and the friction of the bathrobe's fabric caused her quite a bit of pleasure. She could feel her nipples harden, and it was enough to make her face slightly flushed and a moan escaped her lips. "Aaahhh."
She dropped her gaze, slightly ashamed of her body's reaction in front of her mother, but also to check on her cock, which she had felt to give another twitch as well. Fuck! She could see that her cock had slightly risen, enough to part the fabric of the bathrobe and for it's head to be poking out front. There was even a patch of precum already surrounding its slit. How could she get aroused and hard again so quickly after her masturbation in the shower? In that moment Sarah was just glad that the kitchen counter blocked her lower body from her mother's view.

However, the counter didn't block the scent of Sarah's precum. Monica could again smell the distinct new scent of her daughter. She took another deep breath, only to find her gaze drawn towards her daughters bust line.
Monica got surprised and quite shocked, not only by the forward action of her daughter, but also by the sheer size of her tits. "Oh! I see...".
Sarah's breasts really look so round and big. And so tasty. I could bury my face in them. Wait! What?. Monica didn't understand what was up with her today. Where these thoughts about her daughter and her body were coming from? She had never even had a lesbian experience, what was up with her own bodies reactions?

Sarah: "And they are really sensitive as well."

Sarah sighed and let go of her breasts, hoping that she could calm down quickly. They dropped down again with quite a jiggle. However, when she looked up again, she could see that her mother's eyes were still focused on her breasts. There was a sparkle in her eyes, a longing. When her mother talked again, it was almost like she was in trance.

Monica: "Can i take a closer look at them?"