The whistling grows louder, and Michelle ducks to hide, looking around she see's Betty. Betty isn't the most attractive of girls, but she's not exactly ugly, more average, but she looks more nerdy than anything else. Michelle grins, she knew that Betty was secretly into girls, and that somewhere in her, a beautiful succubus was waiting to be born.
She moves quickly, getting Betty from behind, she uses her claws to cut through the bookworm's clothes and discarding her glasses. "You won't be needing these anymore," you say with an evil grin.
"Wh-what are you?" Betty gasps out, and lets out a moan as Michelle plunges a finger into her pussy, and then kisses the girl, using her other hand to rub her breasts.
"What you will be soon enough," Michelle says, and keeps Betty pinned down, moving into a 69 position. "I want you to lick me..." Michelle says, and starts on Betty's pussy, while Betty nervously starts on Michelle's. Michelle grins, knowing that it was only a matter of time before another succubus was born.