“I won't, I won't. Oh, Harry, don't you dare! I beg you not! oh-ah, you beasts! Stop it, I say. I will not, will not, no!”

“Famous first words-I think they were her first. Come, get her over, Harry, I know how to deal with her.”

“Please don't! I'll hate you both-I will! Ya-hooo!”

My finger out, I rolled her over quick, Caroline leapt up, got to the floor and pulled Adelaide's legs back till her bottom rose over the bed's rolled edge, flat on her tummy as she lay, the cushions of her plump, tight arse presented to my view. Straining, she tried to rise. I held her shoulders down.

“She must be smacked first, Harry-that's the truth of it.”

“Caro… Yow!” The strangled yell that came from Adelaide was cut off by the first smack that landed on her bottom cheeks and left a pink blur on the snowy orb.

“Be quiet, darling; I know what you best want-and as you ever had it, just like this!” Smack! Smack! from Caroline again. My sister's hips jerked up and fell. Her fingers clenched upon the coverlet. Her shoulders quivered underneath my hands.

“Goo-oooh! Oh stop it, please! I… yah!” Another smack, and redder was her globe, causing my cock to quiver all the more.

“Don't hurt her, Caroline,” I jerked.

“I'm not, you silly. Don't you know she likes it?” Smack! Smack! Smack! More squeals and sobs from Adelaide, but not so loudly now. At the next and then the next she uttered a long-moaning “Foooo!”, her bottom cherry red, her hips not waggling as they had done just before. “Two more? You want two more, my pet?” asked Caroline.

“No, no! It st… st… stings me! yah!”

Ah, the ripe bounciness of those resplendent cheeks!

“Just one more, Harry. Come behind her now.” The biggest smack, and Caroline's palm rebounded as I took her place.

“Oh-woh!” sobbed Adelaide. Her lovely bum jerked up, rotated, and was still. “You, you, you mustn't, Harry! ah! Oh no! Not up my b… b… bottom! Whoooo!”