You go for the lion image, figuring that it would be useful to have a fierce predator during any escape attempt. Then, like with your brother, the chair released its captive and the room on the screen filled with thick smoke.
You looked uneasily at the screen. You hoped your father wouldn’t suffer as much as your poor brother Mike. This suddenly prompted you to check on the terrarium beside you. As you feared, the male rats were still going at it with your younger sibling. Mike was now being double-teamed as both her muzzle and pussy were being relentlessly fucked; leaving various sexual juices drooling out of both of her stretched holes.
When you looked back to the screen the smoke had dissipated. Now you had an unobstructed view of your father writhing around on the floor. As anticipated he began to change. It was hard to see the finer details, but the noises of bones repositioning, mixed with your father’s screams, told you that it was indeed painful.
Your father rolled on to his front as his limps became shorter, stockier and better suited to four-legged travel. A furry tail sprouted from his backside, while sharp retractable claws appeared on his four new feet.
You where confused as you watched your father changing. He was getting noticeably smaller and a coat of black fur was gradually spreading over him. He certainly didn't look much like a lion. Shouldn't he be bigger with tawny fur and a mane. And come to think of it... shouldn’t he have a dick too?
You were startled when you saw your father's cock and balls beginning to shift as two rows of nipples appeared running down his belly. You shuddered as you watched, already knowing the implications of what you saw.
Sure enough, your father's masculinity began to fade. He yowled out in horror as he looked beneath himself, just in time to see the last traces of his manhood melting away. He went wide-eyed as a tight slit formed beneath his tail, before his balls were pulled inside. The remnants of his penis swiftly followed suit; forming a distinctive clitoris as the lips of his new labia closed around it.
You yelled out in anger. This wasn’t fair! This wasn't what you wanted!
Unfortunately, this did nothing to slow the process. Soon the changes reached their conclusion as your father's face stretched out into a broad feline muzzle. The new black cat instinctively let out a loud meow as SHE released her pent-up frustration.
Then the familiar message returned: “Choose!”
However, the choice wasn't for you. You could only watch as your father looked at the two options presented to her.
The first showed two cats mating, one crouched beneath the other; both clearly lost in the throws of passion. The second option showed what looked like a cat licking itself. More specifically it was a female, head buried between her legs, eating herself out.
Neither option was particularly appealing, and yet your father knew she had to do something. She flicked back and forth between the two images before finally making up her mind.
Your father had chosen...