Best actress . . . Jessica Wakefield?

It's green. It's gooey. It gobbles up humans. It's The Slime That Ate Sweet Valey - coming soon to a theatre near you - and starring Jessica Wakefield!
At first, Jessica is thrilled to win the leading role in the Sweet Valley Niddle School's sixth-grade movie. But soon she learns that being an actress is hard work. When she discovers that she'll actually have to kiss Winston Egbert and Randy Mason on camera, she begs her twin sister, Elizabeth, to rewrite the script. But it's too late. The show must go on.
To Jessica, the only thing worse than getting gobbled up by The Slime is having to kiss two boys in front of all her friends!

An Actress Has to Make Sacrifices . . .

Jessica settled back on her bed and began to read the script. It was really funny.
Jessica's eyes widened, She could hardly believe what she had just read. It couldn't be! It was just to horrible for words!
"Elizabeth!" Jessica cried as she jumped off her bed and flew downstairs.
Elizabeth was in the kitchen when Jessica raced in. "That's aweful!" Jessica cried. "It's disgusting! It's repulsive! We can't have this in the movie!"
"Can't have what?" Elizabeth asked.
"We can't have this," Jessica cried frantically, pointing to the script. "This . . . this kiss!
Elizabeth smiled. "Why? What's wrong with it?"
"You know very well what's wrong with it," Jessica retorted. "Kissing Winston Egbert, that's what's wrong with it!"

Will Jessica, Elizabeth, and Steven be allowed to stay home alone? The Big Party Weekend