"So how was your first transformation by yourself last night?" asked Kendra.
"I haven't transformed since I left your house yesterday" said Eddie.
"I thought my parents said you would transform again that night?"
"I thought so too. But I never did. I did have alot of...uh...interesting dreams though."
"Oh?" asked Kendra. "Do tell..."
"I must have still been really horny because all my dreams were erotic."
"Let me guess: you and me in various stages of feline transformation."
"How did you know?"
"I had the same dreams." Kendra smiled. "I guess we've really bonded after yesterday."
They looked at each other slowly drifting into a kiss, followed by several more, moving closer together on the couch until Kendra accidentally bumped his crotch. Eddie moaned and shuddered, breaking off their kiss.
"That reminds me" explained Eddie "I woke up this morning a little different. I look fully human all over, except one place."
"You've got your cat cock?" Kendra said, then involuntarily purred. "I transformed a little in my sleep too."
Kendra pulled off her shirt to show off her extra nipples without Eddie having to even ask.
"Your extra breasts are all back."
"No, just the..." Kendra cut herself short when she realized he was right. Her two extra pairs of breasts weren't as big as her regular pair, but had definitely expanded. "I woke up with just the extra nipples, but I guess I'm still transforming slowly."
"You also were going to skip wearing a bra today?"
Kendra looked down at herself and at the shirt in her hands. She really had forgotten to put a bra on.
"Can I see it? Your cat penis? I just want to..." Kendra realized Eddie was sweating and clutching the couch. "Are you okay?"
"We better take our potions" said Eddie.
"What's the matter?"
"You're showing off your tits and ready to give me a blowjob, I've got a massive erection, and you're in heat. And your tail is back."
It was the last part that really got Kendra's attention. She immediately grabbed her backside and found Eddie was correct: the nub of a tail she had woken up with was now a full-size tail, albeit still hairless. But Kendra realized she was also eager to have his dick in her mouth.
She practically leapt off the couch to get the potions. Returning with them, she handed one to Eddie. "We can let our inner animals out later. Bottoms up."
Kendra and Eddie both upended and drained their vials. For Eddie the taste wasn't as strange as his first time having the potion the night before (Kendra was quite used to it by now). She sat back down on the couch and waited for something to happen. The two of them sat in silence for several minutes, exchanging nervous glances.
"It usually doesn't take this long" she said. She checked her tail and her pointed ears, but found them still the same. She felt her breasts, but didn't notice any change in their size. Then she kept feeling them, enjoying the sensations as she fondled each of her six breasts in turn. She could feel her crotch growing moist and warm. The next thing she noticed Eddie was on the floor in front of her, spreading her legs wide. His ears were pointed too and a tail was poking out of the back of his pants.
"The potions aren't working" Eddie said. "We can't go to school like this. I think there's only one thing we can do."
"What's that?" asked Kendra, already knowing the answer.
"Give in" said Eddie, and he unzipped Kendra's pants.