"Uh, yeah! I'll be here in a sec" Erika said through the door. She heard Melissa retreat to her bedroom.
Erika let out a sigh of relief and washed her face. Between her legs, the softening member shrank down to form a perfectly natural clitoris; she adjusted her skirt and panties like nothing had happened at all. Her clothes were too small to fit though, and the side of her skirt was now torn along the seam.
Lost in deep thoughts about the delayed growth spurt Melissa's milk had triggered, she walked out of the bathroom and barged into her friend's bedroom, catching her at an awkward moment.
Melissa was sitting on her bed, her uniform shirt open as she was examining her round belly. It looked bigger than earlier at school and the swollen orbs of her breasts did not seem to have diminished in size since Erika drank some of her fluids.
Moreover, three rows of nipples were now perking up on her torso, the flesh underneath slowly shaping up; while the middle and lower ones looked more like animal teats, the ones just below her natural chest almost ressembled small boobs. When Melissa looked up to the doorframe and saw Erika standing there, she grabbed the sides her unbuttoned shirt to cover her belly, but it wouldn't fit anymore.
Erika watched hypnotized the rows of teats jiggle along with Melissa's movements.
"Don't look!" she begged in an uneasy voice. "This is what I wanted to tell you about..."
"I'm... I'm sorry, I didn't mean to..." Erika started, but Melissa was already bursting into tears. After a moment of hesitation, she walked to her friend and sat on the bed, hugging her. Fortunately Melissa seemed too distressed by her own physical changes to notice Erika's growth.
"It's going to be okay, Melissa. I won't push you away." The words had come out of Erika's mouth on their own. Melissa sniffled, trembling in Erika's arms.
"I'm sorry Erika, I don't know what's happening to me... My belly is growing too fast, this isn't normal. And now this..." Melissa said, pushing Erika gently and looking down on her multiple nipples. They seemed to be swelling visibly under their astonished eyes.
Erika cupped the second set of breasts with one hand, feeling its still small weight. Melissa let out a whimper of mixed fear and pleasure. "Gnha! Erika... what's... I don't feel like myself..."
She seemed lost in thoughts, almost confused. Erika wondered if it was the remnant of her cum's scent that was influencing her friend, but before she could say anything, Melissa had leaned over and kissed her with her tongue!
Erika felt the taste of her goo and Melissa's saliva mix in her own mouth, and both moaned, increasingly turned on by the fluid's strange pull on their biochemistry. At least she didn't have to deal with any annoying boner - although her vagina felt on fire, craving to be filled by... something.
Melissa let out a yelp and pushed Erika again, looking down on her body. Her inflated upper breasts had leaked over the two girls!
"Help me Erika! I don't know what to do..." Melissa begged as milk was dribbling down her swollen nipples. Below, all of her teats were rock hard, the bulges underneath fleshing out by the minute.
Erika couldn't move, transfixed by the sight. Her body screamed at her to suck on her girlfriend's delicious breasts, but she was terrified at the idea of the milk inducing another growth spurt - what would happen when her family would notice? What if her penis grew larger again when her own goo's efffect would fade? There were many risks involved...