Your girlfriend, Daisy, bought you tickets for a farm tour a while ago. You gave her a look of incredulity when she handed you the tickets, prompting a laugh.

"Come on, it'll be fun! Besides, we need to go on dates more often, and who wants to sit in a boring coffee shop?"

…You take offense to that comment, but you keep it as naught but a thought. You never took her for being interested in country life. She never made it obvious, anyhow, otherwise you would've done some things differently when you first started dating.

When the date finally arrives, you drive an hour or so away from home, deep into the sticks, till you get to the massive dairy. You always figured farms were big, but mostly from sheer landmass, not the... outright SIZE of the buildings. But this barn is truly massive, maybe taking up a full acre of land. Your girlfriend gawks alongside you, as you approach the building.

"Wow... I never thought the actual barn would be this big! I just figured we'd go pet some cows..."

You inform Daisy that the term Guided Tour implies a need for a Guide.

She shoves you.

As you enter, a tour guide immediately walks up to you, and takes your tickets. Despite being part of the same set of tickets, the tour guide then prompts for you and your girlfriend to split off from each other. They say it's to 'ease traffic' going through different parts of the tour, but you're still skeptical. Daisy assuages your worries, however, so you reluctantly go along with it.

The tour was long. And oddly boring. You never met up with your girlfriend.

By the time you were told the tour was over and were prompted to leave, your girlfriend still wasn't with you. It had been a full hour, and she was just... gone. Deeply suspicious, you wait until none of the staff are paying attention, and make your way into some of the back rooms of the barn.

Off in the distance, you can hear the mooing of cows. You go to investigate, and find...

Daisy. In a milking machine.

Her tits have grown shockingly large, her soda-can sized nipples vacuum sealed inside of pumping machines. A constant flow of milk pours from her teats, visibly bulging the hoses connected to them. Her ass and thighs are far bigger than normal, fatty and rich with prime breeding meat. Daisy moos as the hoses begin to suck harder, her nipples opening as they pour milk like faucets. She rolls her head in pleasure, eyes glazed from the sensations coursing through her, before her gaze settles on... you. Recognition.

"Oh god~... Thank christ you're here! Please, fuck me... BREED ME~!"

She lunges forward with unnatural strength; the suction cups on her nipples popping loose, sending her milk spraying everywhere. She pounces on your shoulders, knocking you to the ground, with her directly on top of you.

She squeezes her breast with one hand, and milk gushes out of her nipple directly into your mouth. Her off hand clutches at the seams of your pants, her pussy already grinding against your cock through the jeans...