Leaving it to luck, and poking her pucker.

Chirstie and Elly kept shifting their gazes between each other and their only means of cover. It was an unspoken declaration the neither girl was willing to sacrifice their own dignity so that the other could have the towel for themselves.

"Elly," Christie said with as much calm that she could muster. "this is just an attempt by Isabel to divide us. We cannot allow something like this to break us apart." she spoke while still maintaining a vice-grip on the towel.

"I know... But I can't afford to be seen like this. I'm still a first year, and I don't want to be known as 'that naked girl' for my entire school life." her comrade responded while also holding on to the towel like it was their only lifeline.

"..."

"..."

"... Rock, paper, scissors?"

"... That seems to be the only choice."

"Please don't do this!" Trish begged as she tried to shimmy herself away from Heather. At the beginning of all this, Trish felt bad for the girl since she was the constant target of Isabel's antics. But right now...

"You need to realize that I don't have a choice in the matter." Heather said with a slight frown as she dragged a step-ladder beneath Trish. "It's either you or me. And I've suffered enough!"

"If you do this, then you're no better than that bitch Isabel!"

"Oh, well why don't you say how you really feel about me~?" came a melodious voice that Trish dreaded to hear. "Speak of the devil, and she shall appear."

Trish did her best to cover her privates with one hand and shoot Isabel a scathing glare. "You. Are. Evil."

The bully scoffed. "True. However you are the one with her naked ass on display." she remarked as she pulled out her video recorder. "Go on Heather. It's time to show this loudmouth the consequences of her actions~"

"A-as you wish!" the meek girl quickly responded as she climbed up the ladder. She was positioned directly behind Trish and was eye-level with her rear end. The girl then clasped her hands together, and extended her index and middle fingers before pointing them at Trish's booty.

"Time for Trish to take it up the tush~!" Isabel cheered from the side as she recorded.

Heather's four digits shot upward and slipped between the crevice of Trish's buttocks. They came to a brief halt upon hitting her bum-hole which was clenched tight, but quickly powered through and rammed their way inside.

Trish's teeth clenched in response to the unwanted intrusion into her butt, doing her best to hold back a scream lest she attract attention. Instead a high-pitched whine escaped between the cracks in her teeth, and only grew higher in pitch when she felt Heather's fingers proceed to wiggle inside her. All attempts to cover up her modesty were forgotten as Trish weakly tried to reach behind her and extricate Heather's digits from her backdoor.

Isabel was nearly crying from laughter as Trish squirmed in discomfort with her eyes going mad.