Alternating strikes, for fun.

The cane swung down with a whoosh and bounced off Susan's rear. Susan hitched her breath and Erin felt the impact, surprising her.

"What the hell?"

Xemina tutted. "I told you to count and look into each other's eyes. Try again."

Another thunderous thwack struck Susan's rear. Erin felt that impact as Susan gasped and curled her toes in her bonds.

"One," counted Erin.

The second hit struck Erin's rear, making Erin gasp and Susan shriek.

"Whoops, looks like Susan didn't count. Let's try again."

The demoness began to alternate her her strikes, and each hit, the girls alternated between feeling a jolt of pure pleasure and a sharp spike of pain on their ass and thighs. They both counted all the way to seven after fourteen strikes and then Xemina suddenly stopped.

She waited, walking around the pair, inspecting them. She leaned into Erin from behind, testing how moist she was between her legs.

Erin made the mistake of looking down and Xemina pulled back and away instantly. "Erin broke eye contact. Start from One."

Susan stared daggers into Erin when Erin looked back into her former tormentor and fellow captive's eyes. Erin wordlessly tried to apologise. She didn't know it was a trick.

Both girls couldn't help but squirm in their bondage as Xemina slowly reached the seventh stroke for each girl a second time. Then she swung on Erin's rear... and deliberately missed. Still, Susan counted out, bracing for impact.

"Oh, that was a practice swing," Xemina grinned. "Back to zero."

The pair eventually reached twenty each, but not before Xemina played a few more tricks. Asking questions, counting along with them, even edging the pair with her fingers and tickling them. Every time Erin or Susan looked away or said anything but the count, the pair had to begin from zero.

"Well, it looks like you made it, girls. However, I suspect you both loved it. Look at you. You're practically drooling down there."

Susan nor Erin risked a response as Xemina spread Susan's lips with her fingers and licked a thick tongueful of musky fluid out of it.

"Ladies, you can speak," Xemina says. "It's over. Sure, you may have messed up several times and I think you should count to thirty from now on."

With a snap of her fingers, Xemina released Susan and Erin. They collapsed in a pile, panting from unfulfilled need, exhaustion and aftersting.

Erin grabbed her asscheeks and hissed, breathing sharply as warmth emanated from her welts.

Meanwhile, Susan was on her hands and knees, sobbing into the floor. For such a tough girl, she was pretty sensitive, Xemina mused.