One More Humiliation! (Spanking)

"Okay Sara, we're at her house, now fucking give us some clothes," said John squeezing his knees together tightly, trying not to piss on the sidewalk.

"Uncomfortable much?" Sara teased. Alright, I promised I could give you clothes, but before I do it, can you let me put the two of you in one last humiliating pose?" asked Sara in the most innocent voice she had.

"No! You said that you would give us clothes when we got to Megan's house! Now give us some clothes!" Demanded Joanne.

"Joanne, let her do it, if we get clothes before guests start arriving then it's worth it," said John.

"John, you don't know her like I do, I've had to live with her my whole life, she will humiliate us, it's a trick," explained Joanne.

"Joanne, we will be humiliated if we attend this party naked, same might happen if we listen to her. We'll be wasting time if we argue about it, or if we try to convince her to just give us clothes. The more time we waste here, the more likely it is someone arrives and sees us in our birthday suits. So just do what she says." argued John.

"Okay, Sara, what do you need us to do?" asked Joanne. Sara walked over to the front steps of the house and sat down. "I need you two to lie down over my lap, in a spanking position, while I caress your bare, naked, exposed hineys." said Sara.

"And then you'll give us clothes?" asked Joanne.

"I made a promise didn't I? I said I could get you clothes." responded Sara.

"Alright then, lets get this over with," said Joanne walking over to her sister and assuming position on her lap. "I know what you want to do by the way, I'm not stupid," said Joanne.

"So, you got on my lap anyway?" asked Sara.

"I'm **** for my life not to be ruined, if there is even a slim chance you can give me something to wear, I'll take it," responded Joanne.

"Alright then, John, get over here. I need you both in position, you'll both be going at the same time," Sara told John.

John desperately had to pee, it was getting harder to hold it in. So he awkwardly walked over, hunched over a bit, while holding his crotch. He then proceeded to get into position.

"You aren't going to be able to hold it, just give up," Sara whispered in his ear.

"No, I'm not giving up, I can't miss this chance," John responded.

"Alright, but if you piss yourself on my lap, you'll regret it." Sara continued whispering. After that comment she started caressing the bare butts of both John and Joanne. "Tell me how it feels, Joanne," said Sara.

"It feels really weird, you're my sister for heaven's sake, you shouldn't be caressing my bare ass cheeks," said Joanne.

"It's interesting to hear your thoughts, Joanne. I'd ask John for his, but I don't need to hear them," said Sara. "I'm wearing short shorts, I can tell by the erection pressed against my thigh, hard, and dripping precum that he enjoys this a fair bit," Sara continued.

"John, you are such a fucking pervert," said Joanne.

"Shut up, please, it just happens," responded John, looking away from Joanne while blushing.

"Sure it does, I'm sure you have no control over your own body," Sara sarcastically said, despite knowing full well that he couldn't control it. Sara continued carressing John and Joanne's bare butts for another couple minutes, and then stopped once the two N.A.K.E.D. participants had been calm and enjoying it for a little bit. Despite being her sister, even Joanne was showing signs of arousal.

"You stopped... are we getting clothes now?" John asked Sara.

"I hope the two of you are aware of the fact that if you scream, someone will come here, likely Megan or someone attending the party, and see you naked," responded Sara.

"Put the ballgag back in, I'll owe you one if you do it!" Joanne quickly said to her sister.

"Joanne, why would you want that back in your mouth, and why would we scream?" asked John, looking worried.

Joanne ignored him, and Sara put the light blue ballgag back in her sister's mouth. "Remember John, don't scream," said Sara.

Just then Sara landed a sharp smack on John's right butt cheek, causing him to bite his tongue in an attempt to stay quiet. Then immediately after the first blow she delivered another one, but this time on his left butt cheek. Then she landed a sharp smack on each of Joanne's butt cheeks, causing her to make a muffled scream through her ballgag.

Then she continued the spanking, hitting each of their naked, bare buttocks as hard as she could. First she would smack John's right buttcheek, and then his left. Next she would smack Joanne's right buttcheek, and then her left. Then she would repeat the process. She would smack the bare ass cheeks of John, then Joanne, then John again, then back to Joanne. Tears were coming out of John's eyes as he desperately tried not to start screaming in pain. John's ass was redder than it was when his mom spanked him. Joanne's ass was somehow even redder than John's.

Tears were pouring out of the eyes of both of the naked teenagers. It didn't stop Sara from the barrage of blows she was delivering onto their naked butts. She didn't relent from her assualt, despite the fact her sister was howling in pain through the ballgag she was wearing.

Once Sara felt their asses were red enough she stopped and said "okay, I'm done, you can get up now."

John got up and immediately started jumping around rubbing his stinging rear. He wanted to scream but didn't want to attract attention. Joanne on the other hand, due to the fact she was tied up, sank to the ground and started sobbing. She couldn't touch her ass, she couldn't relieve the pain. All she could do was cry.

Meanwhile Sara stood there grinning as she stared at the light on the security camera aimed at the front door.