Vintage: Sabrine Stage 1-4 Pin-Ups (Patreon)

While Alexis took a more bovine form for superior milk production, the scientists has bigger plans for Sabrine. Something more aggressive. Her transformation adds hundreds of pounds of thick, rippling muscles. Including a few new additions to her anatomy. The tail and horns took some getting used to, but the cock massive cock and balls she took to like a duck to water.

While other members of the experiment were relegated to "breeding stock",  Sabrine was "Put out to Stud". Her sex drive became almost unquenchable, able to go back to back breeding sessions practically round the clock. The force of her thrusting required reinforcing of the equipment to gain proper readings and prevent possible injury to her breeding partners.

The researchers have been satisfied with the results, beyond anything could have anticipated, they have had trouble discussing the effects of process with Sabrine, as her responses to all questions has been limited to guttural grunts of satisfaction or simply shouting "Next!"

The also decided to soundproof the lab...

Fullsize Linework & Colors for Stg 1-4...