You welcome them inside, unaware that your clothes have all ready disappeared as they walk past you. As you lead them into the dining room, your body starts showing a layer of, teal fur pushing through your skin. Even you mind begins to wane as your straight personality begins to waver at the sight of their furry behinds, 'Damn they've got some nice asses.' you thought 'and their dicks ain't to bad either.'
As the three of you walk into the dining room, your mom and your sisters gasp in shock at you and the neighbors, only for their expressions to change from panic, then confusion, and finally shifting into warm smiles on their faces. As they got up to greet the two, their clothes began to fade away and chests began to deflate until they were as flat as a male's.
"Hi! You must be the new neighbors. My name is Whitney, and this is my herd, Lucy, Zoe, I mean Zack, and Greg. And I see you've already met my eldest son, Jay. It's very nice to meet you two!" She says, reaching out to cup their massive balls. "Likewise." the black horse said as the two did the same to 'his' now existent, equine balls and penis.
After the exchange of of ball cupping between your mom and your sisters with the neighbors, they all had their own growing coat of fur, your 'mother' with a coat of pink fur, Lucy, now Luke, with a reddish-brown coat, Zack with an interesting dark blue coat with a violet shine. and finally Greg with a white coat with a few red spots as well.
"Please, why don't your join us for dinner?" Whitley asked, pulling up two guest chairs from the side. "It will be our pleasure!" the anthro horses said, both unfazed by the changes going on. The two walked together, hands cupped in each others leathery balls as they sat between you and Whitney. It also appeared that all of your equine penises were perpetually erect as everyone sat down.
Soon, your family continues dinner with your new guests as the chairs begin to shift as well, causing holes to expand in the backrests, allowing new, tails to grow from above all your behinds. Hands and feet begin to shift as well, causing all of your hands and feet to shift into hybrid hand hooves and hooves for feet.
Your family facial features change as well as furry ears begin lengthening into triangle shapes and crawl up the sides of your heads until they rested at the very top. Even your mouths begin to shift outward into long muzzles tipped with pink, or black, leathery noses.
Even the house begins to change as pictures of you and your family, shifting into family outings of a herd of stud horses, lovingly cupping each other's massive balls in every picture. IDs and any form of humanity left in the house soon shifted to match its equine residents.