You kiss Rachel, you're not really sure what made you do it, but you slide your tongue into her mouth while continuing to grind against her fingers. She seems surprised, but returns the kiss, continuing to rub your slit.
You start to notice that her scent is changing, looking down you notice that fur is starting to grow on your friend. Grinning a little, you know that she will soon become a werewolf just like you.
"Rachel, I don't know if this is a good idea," Tina says worriedly.
"Don't worry, it'll be fine..." Rachel says, as the changes begin to spread. She continues to rub your slit, her other hand moving up and rubbing your breasts, causing you to growl a little as she starts to kiss you again.