"Me, I'll got first!" Beck shouted. "I fucking hate having to say goodbye to my cock every time I shift into my human form." They eagerly lifted the vial to their lips and gulped down the potion. To their surprise, Beck actually liked the taste of the potion. It had an earthy, almost musky, flavor and a salty aftertaste.
Suddenly, Beck felt extremely, insatiably horny. Their hand reached instinctively for their pussy, and they rubbed furiously at their throbbing clit. "Y-you're sure this is n-normal?" Beck gasped as they pounded at their pussy.
"Yessss, Beck," Saku hissed, stroking her familiar's scaly head as she spoke. "The transssformation issss quite... ssstimulating."
As Beck played with their clit, they noticed it beginning to swell, just like it always did when they shifted into a werehyena. Soon, the nub began to elongate, soon developing a shaft long enough to stroke. The end of the long clit began to reshape into a dickhead, and a shroud of skin grew over it and puckered at the tip.
"Oh Moon, I have a foreskin!" Beck grinned. Since they'd only been a herm when in hyena form before, this was their first look at themself with a human cock.
"Do you like it?" Saku asked.
"I love it!" Beck cheered.
"It's so cute!" Ellie said, reaching out to tweak the overhang of Beck's new foreskin.
Beck slapped Ellie's hand away. "Hey, I get to play with it first!"
As they stroked their still-forming cock, Beck felt their slit moving backward. The skin in the new gap suddenly started swelling, forming a baggy sack of loose flesh between cock and cunt.
"Look, Beck!" Brianna said, pointing. "You've got a ballsack."
"But no balls," Beck grunted as they jerked their cock off. This was suddenly remedied when Beck felt a pair of plump new testicles drop into hir sack. Hir arousal growing still stronger, Beck jerked hard at hir throbbing shaft. Shi was rewarded with a surge of electric pleasure just as the unmistakable sight of a jet of thick, gooey cum erupting from hir tip greeted hir eyes.
"Holy crap!" Kristi gasped. "Joelle, are you seeing this?!"
"I think so, Kristi," Joelle responded.
"This is amazing," Beck marveled. "I've never cummed in my human form before!"
"But I assume you'll be doing it quite a bit from now on," Yoshino smirked.
Beck blushed. Shi'd forgotten that hir new yokai classmates were still watching hir. "Uhh... thanks, Yoshino-san?" Shi was suddenly intensely aware of the puddle of cum in front of hir.
"Nice going, Yoshino," Natsuki frowned. "You embarrassed hir."
"Errm... who wants to go next, girls?" Beck asked, just a bit sheepishly.