Sold by the Lactation Institute

Michelle has become a regular and voluntary test subject at the institute. Once a month she get to become a human cow and she loves the effect the serum has upon her body. However she is growing increasingly tired of the world outside the Institute and longs for more regular visits.

When she finds out the Institute is running low on funds and is offered the chance at more regular visits in return for selling her unusual gifts to some interested parties she jumps at the chance. However when she meet the mysterious Joshua, the Institute's wealthy benefactor, and owner of a new milking stall that brings with it the promise of exquisite sexual torment, she discovers that satisfying his perverse desires may require her to abandon her humanity completely.

Is this a step she is willing to take?