Confess

Whatever the source of her unexpected urges she at least wants to be honest with her friend before anything happens between them.

"I'm Becky!" She blurts out before she can think better of it "I know I look like Mr Trent but I'm really Becky in his body. I, um, I can prove it. You... lost your virginity last summer. Billy Miers, in the back of his car. He said he'd pull out but he didn't and you were scared he'd knocked you up for a month. You told me you'd never been so happy to get your period."

Tina stars at her possessed teacher mouth agape. She hadn't told anyone about her misadventure with Billy not even her parents. Literally only three people knew anything had happened that night and even Billy didn’t know about her pregnacy scare. Which only left...

"Becky?" She asked incredulously "No, this is crazy. I don’t know what kind of mean prank you're pulling Mr Trent but it's not nice!"

Tina's scepticism, while understandable, is frustrating for Becky. She's not used to her friend not trusting her and she briefly considers leaving Mr Trent's body but the last thing she wants is Tina running around screaming about alien slugs. Instead she keeps her cool and patiently works on her friend's disbelief.

"Okay," Tina says after a few more personal anecdotes that only Becky could know "If you're really not Mr Trent prove it. Do something he would never do..."