Liz is a scientist who has just created a delicious milk that could cause unknown side effects. She wants to find someone to test it, but after a few weeks without success, she gives up.
Liz goes to a coffee shop to relax and orders a coffee. She sees a waitress named Rachel and notices that she is thin and very tired. Liz has finally found the right person, so she orders two coffe milk, one for herself and one for Rachel. Rachel refuses because she’s working, but Liz tells her it’s to give her energy, and Rachel accepts. When the coffee milk is ready, Liz takes the opportunity to knock over a glass for Rachel to pick up while Liz pours some of the milk she created.
Liz sips her coffee while watching Rachel drink it down to the last drop and sees the first results: her breasts and buttocks grow slightly, she becomes aroused, her hair turns orange, and a penis grows. Rachel doesn’t know what’s happening, so she goes to an out-of-service bathroom. Liz, seeing the first results, decides to drink some of the milk too and goes to get it. Rachel doesn’t know what’s happening to her body, but her breasts grow a little more, and milk starts leaking from her nipples. Her size increases by a few centimeters until her clothes are somewhat torn. When Liz enters, she sees the wonders of the result. Rachel asks her not to look, and Liz begins to get aroused, her body and penis growing even more. They both end up with the same body.
They begin having sex until they reach orgasm, and both return to normal, but Rachel retains her orange hair. Liz invites her to her house.
It’s nighttime, and Rachel arrives to spend the night at Liz’s house. Liz offers her some milk to refresh herself after a tiring day, and Rachel drinks it. Liz shows her an empty bottle and explains that what she drank wasn’t ordinary milk, but the milk she herself prepared and drank before Rachel’s arrival. Both of them regain their enormous bodies. Rachel doesn’t understand what’s happening, but Liz explains that she created that milk and, while waiting for Rachel to arrive, prepared more for her to drink.
And she tells her that she has been chosen to be her servant for the milk experiment.
Rachel is confused, and while Liz explains some scientific things, Rachel becomes aroused watching Liz’s body and, noticing her feet, proceeds to lick them.
Liz doesn’t know what’s happening but lets her lick her until she can’t stand it anymore and they have sex.
In the middle of it all, Liz is exhausted in bed, and Rachel sees the milk Liz prepared and proceeds to drink a whole bottle and suffer a transformation: her breasts and buttocks grow, her penis grows until it reaches her neck, her hair grows a lot, even below her buttocks, she develops muscles, and her fingernails and toenails grow a little. She becomes very aroused and is thinking about sex when Liz gets up. Rachel grabs her buttocks and penetrates her until he ejaculates. When he finishes, Rachel lies in bed masturbating while biting her breasts. Liz sees the results and is amazed and wants that body, but she sees that she drank a whole bottle, so she decides to drink one bottle and give another to Rachel.
Liz has plans for her maid and wants to know what the side effects of her milk are and how wonderful the results can be
