Erika decided to ignore the slight pain of her constricted shaft, and let herself fall on all four, humping the bottle furiously. It was difficult getting the proper stimulation to squeeze the goo out, but she was very dedicated. She used one hand to press her balls and the space under them, realizing it felt extremely good when she did that.
Her mind was also overcome with arousing pictures; at first it was what she had remembered of Max, but she pushed that thought aside to think of Melissa. It felt less wrong. She focused on the memory of Melissa's breasts against her body when she hugged her; she imagined herself against Melissa, kissing Melissa. Dry humping Melissa. Melissa petting her cock.
Without a warning, Erika reached climax and let out a cry of pleasure, shooting clear semen into the bottle. Her whole body was trembling while her member mechanically went through the motions, her balls emptying themselves more with each spasm. After a few minutes, Erika was soft enough to slid out of the bottle, which had collected a good amount of white goo. Her body started reverting back to human as well, which was a relief.
She got up, examining the goo stuff. It looked really sticky. She licked some of it from the bottle opening but it made her wrinkle her nose. It tasted... strange. Not too bad but not something she was used to. Erika opened the fridge and grabbed a bottle of strawberry smoothie, spilling as much as she could into the bottle of goo; that would certainly improve the taste!
After she was done mixing the two together, she drank half the bottle - that was as much as she could ingest, right now. She could just take the bottle along with her in case of emergency anyway, right?
Erika went to the bathroom to clean up and throw her school uniform in the laundry bin. With an hesitant hand she touched the spot between her leg and... her lady bits were totally back, even the vagina thing! She picked clean clothes - denim shorts and a cute tank top. She had to squirm for a moment to get inside the shorts because of her fuller hips, but it worked. What worried her more was that although she was back to a normal human shape with no apparent dog member, her breasts hadn't reduced past B cups, which was a size more than comfortable for this top, but it was her favorite's so she didn't want to find another one.
It's not like she had many options though - she still didn't have anything to fit her new shapes, not even underwear. Hopefully Melissa could offer her a spare bra or two that would fit, as she had promised...
Erika grabbed her bag with the bottle and her stuff inside and, after filling Max' food and water bowl, she let him inside the house and locked him in. The weather was still stormy outside, but she was happy, like a weight had been lifted off her shoulders. She couldn't wait to be around her friend again, and smiled all the way walking to Melissa's.