You'd zoned completely out as the farmer had worked out the cream from your breasts, taken far away by your pleasure. How long had it been? All you knew for sure was that the small bucket set beneath you was now about half full, instead of the bottom of it just being barely covered.
The pain of engorgement had faded away now to a distant memory, long since replaced by the now-familiar but always potent ecstasy of having your breasts kneaded and drained. You could still feel the pulsing let down of milk with each massaging motion by your farmer, but you could tell you had given the bulk of what you could.
Abruptly your farmer reached for the machine Eliza had brought in. The break in the rhythm jarring you back from your daydream. "Sorry girl, the machine will need to finish up from here, I need to prepare some things so we can continue." You gave him an understanding moo as he turned on and placed the familiar suction cups.
You slipped again into the fugue state of being milked.
Some indeterminate time later again, a tray appeared in front of you, clipping into place to the lower piece of wood on your stall's front side. A helping of wonderful smelling oats was then dished out by Eliza. "It's delicious, and it'll help your milk too" she stated. You watched the others in their stalls dig in face first and you soon did the same.
Eventually you could tell the machine's suction was fruitlessly pulling, and this was further evidenced by the milker's tubing returning to it's transparent color now that your milk no longer flowed through it. Mooing for attention once more, you were unhooked and your nipples tended to.
One by one the other stalls fell silent too, the place sounding a little odd without the din of the machines. You were all brought to the central table to drink from cool water tubes which flowed into a trough. Lorelei was last to be brought out. You watched her intently. Your farmer picked up her milking jug which had some obvious weight to it. You thought you could spy a second milker there. It was hard to see, Lily was in the way. Had the first machine broken down perhaps?
You were shaken from these thoughts when you were untied once more, this time at the collar, freeing you. Eliza gave you a tap on the ass to get you to follow the others, who were exiting the barn. "Time to go out to the pasture, love" she said.
It was now well and truly morning, the sun was shining and only a few fluffy white clouds hung in the sky. The herd meandered down to the rolling green valley behind the barn which consisted of a couple of shady trees and a small shallow stream surrounded by woods.
Lorelei was leading the way. You made way towards the shade of the tree. The lush, cool grass was a welcome change on your hands and legs compared to the straw which had impacted on your skin a bit from how you had been still in your stall. Feeling quite exhausted from your milking session, you flopped down to watch the others.
The farmer approached, sitting down next to you. You got back on all fours and moved closer, touching his side with your body. He rested his arm over you. "Got something for ya" he said. " Last week I donated some of your milk to a milk bank, your first gallon, as a matter of fact." I've got three letters and a card here from mothers thanking you profusely." You swelled with pride. Your milk. Your purpose. Softly you begged "Please...I want to be your cow." You were sure.