Get Sally into the tub with her

"Can... can you wash my back?" Hilda asks timidly as a blush creeps over her face. "I can't seem to reach it..."

Sally does as she's asked, and starts running a sponge along her lady's back.

"Oooh, that feels good," Hilda says with a smile before biting her lip as she puts her sinister scheme into play. "But, um, could you go a little lower?"

"Of course, my lady," Sally says as she leans in a little further, gently cleaning away more of the accumulated dirt and grim from Hilda's body.

"Mmmm..." Hilda hums as she closes her eyes. "...lower..."

Sally bends over even further, the water now coming up to her elbows and threating to get her robes wet.

"Lower... keep going..." Hilda commands as she feels herself heating up.

"I-I'm sorry milday," Sally says, a tinge of genuine regret coming into her otherwise sweet voice. "But I c-can't reach any further. If you'll excuse me, I'll go fetch one of the taller maids."

"No," Hilda commands forcefully, some of the steel coming back into her voice.

"I-I could fetch a scrubbing brush," Sally says, a little bewildered by Hilda's decision.

"No, that wont be needed either," Hilda says, a devious grin plastered on her face, unknown to Sally. The nude noble's pussy twitches in pleasure beneath the water, out of the servant's sight as she springs her sexy trap on the unsuspecting woman. "Just use a sponge and climb in behind me."

Sally's face turns crimson red. She's long had a crush on Hilda and often fantasizes about her, seeking solace on many a lonely night with only her fingers for comfort. Sometimes she would pilfer a dirty pair of Hilda's panties from the laundry, licking and sniffing them all night as her imagination runs wild.

But as a commoner, Sally knew it could never be more than. The class differences between them were too great, and any coupling would cause quite the scandal. At least, that was what she had always thought...

"Well?" Hilda asks, impatience creeping into her voice.

Sally gulped nervously.