Welcome to Master13's Island
Let the games begin.

I love the way e.b. squirms on my lap, as I grope and pinch her. But I have other things planed for today. I give her a light slap on the ass, and tell her to get up. I tell her to “Go free learningtopleez from the sawhorse, and bring her back here.” She scampers off to the sawhorse, swaying her hips delightfully. Soon I have both slave girls kneeling in front of me.

“I have a little activity for you girls,” I tell them. I take a pair of nipple clams, with a connecting chain, from my pocket. The chain is longer than usual, perfect for what I plan. I place one clamp on learningtopleez’s left nipple, and the other one on e.b.’s right nipple. “You are going to run some laps together. Each lap will be a complete circuit around the palm trees I’ve marked with rope. Each time you complete a lap, you will stop here to receive a caning.” I hold up my favorite bamboo cane. “The longer the lap takes, the more strokes you will receive. The nipple clamps are to force you to run side-by-side. They are loose enough that if they’re violently jerked (if one of you falls over for instance) they will come off rather than doing any serious damage. However if a clamp does come off, the offending nipple will receive a stoke from the cane before the clamp is reattached. There is just one more thing.” I take two vibrators, and insert one in each slave’s pussy. “These are remote controlled. From time to time I’ll turn one on without warning. Just to keep things interesting.”

The two nude runners get into position. I tie their hands behind their backs. I line my cane up with their asses so that it can hit both in one stroke. “Ready. Set.” SMACK! And they’re off!

They can’t go very fast. They have to carful to keep their pace together, and with their arms ties their balance isn’t as good. It’s really more of a light jog than a run. Still they are doing better than I thought they would. They complete the first lap without mishap. “Not bad. I’ll only give you three strokes for that. Count them. The third is your signal to start the next lap.”

SMACK! “One,” they counted in unison. SMACK! “Two” SMACK! “Three” And off they went.

This time I decided to make it a little more interesting. I flipped e.b.’s vib straight up to max power. Caught off guard, she stopped running. ltp kept going just long enough to draw the chain taunt, and her nipple clamp was painfully pulled off. They stood staring at each other for a moment. Then looked to me. “Keep going,” I said. They resumed their side-by-side position and finished the lap. “That cost you some time. You will both receive five strokes. But first ltp needs to take one on her nipple,” I informed them.

“That’s not fair,” e.b. said. “I’m the one who stopped.”

“Are pleading on ltp’s behalf, or complaining that you’ve been cheated out of punishment?” I asked.

“A little of both,” e.b. admitted.

“We’ll stick with the rules as I set them,” I said. I proceeded with the punishment. ltp screamed when I hit her abused nipple with the bamboo. I put the clamp back, provoking a gasp of pain from her. Then I delivered the five strokes, and got them going again.

They ran six more laps. I continued to play with the vibrators. One time, I kept ltp’s going constantly until just before they finished the lap, and then shut it off. By the time they completed all eight laps, they were two very sore and tired slave girls. I let nap in their cages. They’ll need their rest for what I’m planning next.