Naughty girls deserve a spanking.

Suki remembered from looking through Cathy's stuff that she had several silk scarves amongst her other possesions. A wicked thought came to her and the idea that the punishment fit the crime arose. She turned to her lover who was looking at her expectantly. "I think that they enjoy taking advantage of helpless people, so let's get your scarves and have some fun."

Cathy smiled evily at Suki's grin and nodded her head. Suki jumped over to Cathy's wardrobe and pulled out the scarves. The twins had barely acknowledged the other two girls' presence, so engrossed were they with each other. They were quick to pay attention when they were abruptly pulled apart and quickly bound face down with Erica's hands tied to the left bedpost near the head of the bed and her feet to the bedpost at the foot. Samantha was bound similarly, but to the right side of the bed.

Cathy rested her fists on her naked hips and said in a stern voice. "So now what can you two do? Bound hand and foot, you can't do anything to anyone, can you?" The twins turned their heads to glance at each other before looking nervously over their shoulders at Cathy and Suki.

Suki grinned up at Cathy. "Perhaps we shouldn't be TOO hard on them. After all, they did show up as instructed."

Cathy smiled in return. "They did, yes, but they have yet to make up for their past misdeeds. Plus, I do believe that not only is **** supposed to be a sin, but also illegal. They have to be punished." She nodded Suki over to Erica, signalling her to straddle her back, facing Erica's feet. Once they were in place, they raised their hands at the same time and brought them down with a resounding smack, driving a gasp of shock and a grunt of pain. By the tenth slap, all four were getting into it with the twins' hips gyrating with each blow and the lovers' naked cunts dripping their juices on the twins' backs, soaking their teddies.