"Mary..." Kevin said in a low voice. She smiled at him, and bends him back against the bed. Her piggy breasts and her maleness dangle over him, tantalizingly. Kevin reaches his hooves up to fondle them.
His rough nails tease Mary's teats, and she squeals in pleasure. Her penis stiffens, as does Kevin's. The two find their shafts touching, heightening their senses and pleasure.
"Oh my god, please Kevin! I need you so badly!" Mary oinked, pulling at her cock. Kevin snorted, loving the smell of his girlfriend's arousal, and new body. He grabbed one of her breasts and shoves it in his mouth. Milk pours out, and he marvels at how full she is despite having released some of her milk earlier. He guides his cock between Mary's rows of breasts.
She pushes them together, and starts moving up and down to stimulate it. Mary's own cock shakes as her orgasm builds. She moans in need, as Kevin's cock tickles her nipples. Finally having had enough, Kevin spits Mary's breast out of his mouth, and flips he rover.
His movements are rough, as he stops caring about whether he's being gentle or not. He just needs to take her, so badly. Kevin's cock easily slides into his girlfriend's swollen lips. Mary starts pulling at her penis harder and harder. Kevin pushes forward until his hair testicles are pressed against the back of Mary's.
Her stomach was stretched to the limit as Kevin filled Mary. Over two feet of porky sausage inside, Kevin pulled back. Mary's cunt clings to his shaft, and doesn't want to let go. Kevin rams his cock back into Mary, and she screams in pleasure.
"Ohhh god!! Fuck me, please Kevin! Take me, make me the mother of your piglets. Finish my transformation!" Mary screamed.
She rubbed the fluids from her cunt all over her body, as well as the precum from her own dick. Kevin took his hoof and stuck his two fingers into Mary's enlarged ass. Mary's balls tensed as she felt her orgasm about to burst,
"Are you gonna cum? Huh, my sexy beast? You dirty, fat, fucking pig?" Kevin asked.
"Yes, YES!" Mary cried out. Her shaft twitched for a moment, then erupted in a geyser of sum. Mary's screams became oinks and squeals, while Kevin emptied himself into Mary's snatch.
"That was incredible Mary." he breathed.
"Oh no, we're not done just yet Porkers." Mary said. When she called him that, he shivered. The name made Kevin feel like an animal, like a big, hair beast. He snuggled up to Mary, as her own cock became hard again.