nine-tails

You see a leather cat-o-nine tails hanging on the wall. You grab it and make a few practice swings. Your new strength causes impressive air movement sounds, and your sister starts trembling.

"With every hit, I want you to count, and say "I'm a dirty slut", got it?"

She closes her eyes and cries.

"Yes master."

You bring the whip down hard on her left breast. She let's out a yelp, and bends a little bit, but manages to do as she was told.

"One, I'm a dirty slut!"

You continue as soon as she get's back upright, and a load smack rings out as her right tit juggles.

"Two, I'm a dirty slut!"

She manages to make it for a while, as you get to five on each of her orbs, which are now displaying impressive red welts.

When you change directions and swing the whip up to hit her pussy she flinches. She sees it coming and brings her leg up to block.

"Bad girl! That's 2 extra for each! Now get back into position!"

She sobs a bit and does as she's told.

She manages to keep from flinching again, and her breasts bounce every time she get's hit.

"Your being a good girl now, so I'll give you a reward."

You swing the whip a couple times and bring it up hard for one last blow on her pussy. As you do you yell.

"CUM!"

She screams out and falls to the floor holding her pussy. She convulses in pain and pleasure as she orgasms hard. You feel a good amount of energy flow into you, but you can tell you haven't fully fed. She's well prepped, but your confident you can make your first meal even better.