As Gina groomed Ramone lovingly, he cranes his neck down to her topmost nipples, which still appeared to be fuzzy human breasts. He latched on to one of her nipples and began sucking rhythmically, occasionally flicking his tongue across or swirling his tongue in circles around her nipple. He massaged her other, more animal-like teats with his hands. Her milk was creamy and a little light, and so perfectly warm. As he nursed from his lover, Ramone also drank in her new smell. His face was buried in her chest, and he was drowning in her new odor with his new heightened senses, which was musky but sweet, and there was something feral, yet still gentle, about her smell. Gina’s rat pheromones worked the gears in Ramone’s brain, taking control of his mind, which was flooded with fantasies of primal breeding. He was filled with the animalistic urge to breed his lover and fill her belly with his young. He dreamed of images of her being swarmed by her bountiful nursing litters, his progeny. As his mind was grappling for control over new primal instincts, Gina felt his erection against her new engorged clitoris, covered in a delicate coat of peach fuzz. She frotted against his large, still humanoid member with her clit, teasing him. His mind was worlds away, and he unlatched from her breast and gasped passionately, startled by the motion. He reciprocated her invitation and began gently rubbing against her crotch. Gina knew her lover was ready and repositioned herself on all four paws, presenting her soft, pink entrance to Ramone with her tail held to one side. Ramone got up on his knees and got behind Gina. For what it was worth, he hesitated for a moment as he held her haunches in his hands. He was about to fuck an animal. His chest heaved as he gazed down at Gina. She was a giant rat now, but something about her was so... so completely alluring to him. He locked eyes with Gina, who was looking back at him, her small mouth open and panting as she waited for him to make the next move. She was an animal, but this was still Gina, his lover. A new fresh wave of her pheromones wafted up to his nose from her entrance and sent Ramone over the edge. He straddled the giant rodent and lined up his member with her entrance, then plunged in. Gina squeaked, but something about it still sounded so much like her moans did before. Ramone began gently thrusting in and out. She felt so different now. She was gigantic for a rat, but at best she was the size of a large dog, and still smaller than Ramone. The walls of her slick pussy swelled around his dick, enveloping him as he worked in and out. As she loosened up he drove himself all the way to his huge rat-like balls, which began bouncing off of Gina. Gina was on the tips of her ratty toes as she pushed her rear into Ramone so he could go as deep as possible. This caused Ramone to speed up his tempo, and he leaned closer to Gina until his heaving chest was resting on the soft pelt of Gina’s back. His hands migrated to her still unchanged breasts to grope and massage them, occasionally tweaking her nipples. The rest of her assets bounced and jiggled wildly beneath her, some of her teats brushing lightly against the bedsheets. Gina tilted her head back to passionately kiss Ramone, forgetting that she now had a rat’s muzzle. He still reciprocated and leaned in to deeply kiss her, his tongue exploring her changed mouth as her whiskers tickled his face. Gina tensed up, curling her long hairless tail around one of Ramone’s legs. This sent him over the edge, and he began pounding deep into her, his rat balls slapping against her. Gina squeaked passionately, feeling his testicles tense suddenly and start pulsing. Ramone plunged as deep as he could, impaling his rat girlfriend and holding her tight with his arms wrapped around her body, dumping load after load inside her. She came with him for what seemed like an eternity. Ramone came one last time, his load feeling thicker than usual as he pushed the first of many sperm plugs into her passage. This is a feature of rats to ensure no sperm leaks out, and that no other rats can inseminate their mates. Ramone released Gina, both lay on the bed panting. Gina’s belly felt so much bigger and tighter now, and it almost seemed as if a beach ball was inflated inside her. Her sides bulged outward with her current litter, and she knew she was close. Ramone kissed his lover and held her giant belly lovingly. He was ready to be a father to the first of many of her litters. While they were busy, Ramone had yet to notice that he had changed further. He was nearly half changed into a rat like Gina now.