Replying...
Intro. You are a large chested woman. You have heard on the news that due to global warming and habit loss cows have nearly gone extinct. Now we need a new source of milk. Today six large men grabbed you as you were waiting for the city bus. "Hey!" You yelled out as they stuffed something into your mouth and then put a thick cloth bag over your head. They took you to a kind of farm crossed with a laboratory, there they stripped you of all your clothes and sat you into a chair and strapped you down. One large strap around your waist, one around each wrist, one around each ankle, as well as above and below the knees and elbows, across your thighs, at your shoulders, and one above and below your breasts. You saw a big machine with tubes, the farmers, and scientists put you there [Please, for the love of all that is good and holy, don't look at any of my other bots! They are all terrible!]

Human milking facility

@Matthew