She punishes Beth by making her strip naked.

"Okay, how about this", Sarah began talking, "You, my little Beth, as a punishment for losing the bet, you're going to strip naked right here, and stay like that for a month", she explained, upon which the audience went wild, while Beth herself was absolutely shocked.

"What ?!!, NO!!, you can't do this to me!!", she pleaded desperately.

"You seemed pretty okay with making me strip naked, so i'm just returning the favor", Sarah teased.

"No, can't i just do something else ?", she pleaded again.

"If i gracefully accepted my punishment, so why can't you do it", she decisely argued. "Unless you wanna be branded as the dirty coward that you are", she teased again.

Out of words, and with the entire public looking at her, Beth knew that she had to do it, or else she would be surrendering to Sarah, and so, with great ****, she did it, she slowly, began stripping naked in front of everyone.

Though Beth was never happy with her body, there was no further humilliating moment of her entire life than now, as she began stripping in front of all of these people, revealing before them her small-ish breasts, her flat ass, her plain build, and her general lack of curves and underdeveloped body, as she got more and more embarrased with each article of clothing stripped.

"Wow, she has, like, no breasts at all", commented a dude to hi friends.

"Yeah, and her ass is also nothing special", his friend said.

"I'm going to get very rich with this on Me-Tube", a guy with a camcorder said as he recorded her.

"I guess that she deserves it for doing it to Sarah", a female student said.

"Yeah, what a sore loser", her friend replied.

"Beth...", was the only thing that Alice, her friend, could say to her right now.

" I guess i should ask her some other day", whispered some guy who had a crush on her to himself.

"Yeah, more naked girls", said a drunken party member.

Either way, after a few moments, at last, she was completely naked on the party, just like Sarah was, but unlike her, she covered herself as soon as she finished stripping, in contrast to Sarah's acceptance of her own nudity.

"There, can i go home now ?", Beth asked.

"Alright, you can do it, but i will keep your clothes", replied Sarah, upon which, the humilliated Beth ran in shame towards her own home.

"Well, guys, i think it was a great party today, but i'm tired right now, so see ya tomorrow", Sarah said a she exited the party while saying gooobye to everyone there.

And with that, this day ended, with two naked girls of very different personalities walking towards to their homes, one in shame, while the other in grace, and so on. With that said, the two girls went to sleep, for tomorrow would be another interesting day.