Drink the potion from the bowl.
From Create Your Own Story
The effect hits immediately and you feel you legs go limp. Tumbling to the floor, the serpent catches you and lays you out in the middle of the room. The minotaur walks up to you and takes off the animal furs it had been wearing. You gaze in surprise, you had assumed the minotaur was male like the rest, but looking at the creature's bare breasts there's no mistaking the femininity. You suppose having a bull's head just makes her voice a lot lower to your human ears.
The minotaur kneels over you and holds open your mouth, squeezing her tit into your mouth and dripping forth her sugary, fatty milk. It tastes much better than cow milk, but you still don't know what's happening. You can just feel that as the milk hits your stomach, your own breasts begin to feel tight under your armor.
"We will use magics on your body to get what we need," she said, gesturing to the serpent man to pick you up. "The process will be quick and strenuous, but from your build and body we know you can handle it."
"Wha..." you murmur. "What do you need?"
The serpent undoes the straps around your waist and pull off your leg armor. "Your womanhood," he laughs and take a second bowl. He sips up the contents and presses his scaly mouth against your pussy, squirting the potion into you. "Once the magic takes root you'll be able to birth new hybrids with potent abilities from both parents."
The minotaur sighs at the serpent's laughter. "And the milk is to feed our people. My milk, combined with the first potion, will turn you into a geyser of human milk, as long as your body is stimulated."