(1) Meet the Parents

Thanks to magic, Tom Riddle looked like a man barely entering his thirties. While some preferred to just settle for aging more slowly, a perk of being a wielded of magic, Tom was not one of them. He had once considered a more unusual appearance, but decided becoming a bald snake ma wasn't going to be suitable for his goals.

He only kept two things from that idea. The ability to double his dick, a reptilian trait that meant he could either double stuff a girl or pound ass and pussy simultaneously, and red eyes. Those red eyes proved genetic, as his daughter had them too.

Ruby Lily Evans. She'd just given birth the other day and was proving resistant to having her pussy caged for a few weeks. Who knew fucking a redhead Gryffinwhore on her eighteenth birthday would put him in the Headmaster's Chair.

He was waiting on Lily, emphasis she had a surprise to him. One that would make him want to knock her up. It surprised him because he was sure she was eyeing up Wormtail as her next babydaddy.

"I can't believe you did this without telling us!" A young voice he didn't recognise rang out, coming closer.

"I would have gone for it." That was Ruby.

"I've had enough classes with you to know you would have taken it." Professor Evans. So who was...

"It is nice! To ask! Before turning someone into another species!" Could it be... Miss Brown? Ruby's girlfriend? Wait... She said something about...

Rubeus Hagrid, I am going to kill you.

Stepping up from the stairs into his office... Lily Evans, Ruby Evans, and Lavender Brown were all very suffered from when he'd last seen them. They'd gone from KK, LL, and HH Cups respectively, to MM, PP, and OO Cup Udders. Cow print bikinis trimmed in red for the Gryffinwhore Students and red trim with gold ties for the Charms Professor. Instead of their normal Collars, they all had red Gryffindor Collars and wrist and and ankle cuffs with a cowbell hanging from their Collars.

Horns and tails were attached and clearly not fake.

They were Holstaurs.

"Professor Evans... Is there a reason you have seen for to make yourself and two of our Students ineligible to continue as Staff or Students here? I believe many in our School were looking forward to Miss Evans getting bred by Centaurs." Ruby perked up.

"That's one of the TriWitch Tasks?!" Tom chuckled at how eager she sounded, even Miss Brown looked like she wanted to skip to that. Professor Evans takes and revealed her Wand, summoning chairs for the three Holstaurs. Headmaster Riddle blinked.

"Hagrid finished the formula, with a little help." Headmaster Riddle blinked again. "A Holstaur can now wield Magic like she could before. We're also... significantly more sturdy and fertile. Contraceptives don't work. Pregnancy lasts a fortnight naturally, but with my Acceleration Potion, that becomes ten days." She got up off her seat and moved to straddle the Headmaster, wrapping him in her massive udders.

"Which means Daddy," Ruby spoke up, hissing as Lavender leaned down to one of her milky teats. "that in Tasks, we can go in as a Team, get knocked up, get the Bonus Points for giving birth, and do it in all. Three. Tasks."

"And dose the other Schools' Witches after Teams and Champions are picked. Send all the Witches not competing home with lots of babies and milky udders." Lavender included between slurps. Just because she was complaining about getting transformed, didn't stop her thinking up uses for it.

Okay, Evans had definitely earned another Riddle baby.

What Next?
Option 1- Durmstrang Arrival
Option 2- Goblin Bred Beauxbatons Arrival
Option 3- Skip all that to see Champions Chosen
Option X- Open to Suggestions