Brooke returns from the shower

A chill ran down Lily's spine as she felt the cool hallway air on her bare skin. Even holding it in place, the vibrator shifted with each new step, sending a ripple up her leg, and a jolt of pleasure through her body. She couldn't believe she was doing this. She glanced back, and saw Chloe watching from the doorway, hiding her naked body behind the door.

Thankfully for Lily, the hallway was deserted. Most of the other girls on this floor had class today, and the ones that didn't were probably on their way to lunch.

Lily positioned herself opposite her own dorm door, leaning against the wall, and again began to twist and rotate the vibrator inside herself. She couldn't help but let out a soft moan at the stimulation, and blushed as she saw herself drip onto the polished hallway floor.

Lily's chest heaved as the sensations coursed up through her pussy, oblivious to the world around her. She didn't notice as Brooke emerged from the dorm showers, her hair still dripping wet, and made her way down the hallway. It was only when Lily heard a gasp next to her that she finally snapped out of her trance. She looked up to see Brooke standing there, wearing nothing but a bathrobe, her face full of shock, with perhaps a hint of arousal. Lily froze, her hand still wrapped around the vibrator, but despite her best efforts, she couldn't fight Chloe's orders, and she soon continued her masturbation session.

Letting out a loud moan in front of Brooke, Lily's face flushed with embarrassment. She tried to speak, to explain what was happening, but the words caught in her throat. "B-Brooke" was all she could manage.

Brooke seemed equally shaken. "Lily... I... I didn't mean to-" She stammered, her voice shaking with nerves. "I was just getting back from the showers and... I didn't know you were into... this."

Lily tried to respond, but as she was **** to press the vibrator's arm against her clit, she instead struggled to hold back another moan. As Lily arched her back, Brooke took a step backward, her bathrobe fluttering behind her, briefly exposing her own trimmed pussy.

Brooke's eyes were fixed on Lily, her gaze roaming over her body as Lily continued to work the vibrator up and down her aching slit. Despite the awkwardness, Brooke's nipples hardened beneath her damp bathrobe, and she could feel a wetness between her legs that wasn't from her recent shower.

Lily pressed the vibrator deeper into her body, finding her g-spot and rubbing it with the rounded tip. The thrill of Brooke watching her as she pleasured herself was enough to push her over the edge, and she could feel herself approaching climax.

With a final thrust, Lily cried out, her body shuddering with the **** of her orgasm. Her hips bucked wildly, and she gripped the vibrator tightly, riding out the wave of pleasure. As her orgasm continued, Lily collapsed onto the floor, the vibrator still buzzing between her legs.

Feeling utterly defeated, Lily leaned against the wall, her body still shaking with aftershocks from her orgasm. As she sat there, naked and ashamed, she heard a small moan, and looked up to see Brooke lightly touching herself under her bathrobe.

"That- that was hot," Brooke whispered breathily, "Next time, you should invite me to join in."

With that, Brooke returned to her own dorm room, leaving Lily alone, disheveled and exposed in the hallway. Taking a moment, Lily collected herself, ignoring the puddle she left on the floor as she stood back up. Retrieving her vibrator, she then made her way back to her dorm room, and back to Chloe.

"You have a lot of explaining to do," Chloe demanded as she re-entered her dorm.

"I can't believe it," Chloe scolded after Lily pulled on a t-shirt and panties and explained the basics of the app, but not her rules. "You get an app that lets you make up your own rules, and the first thing you do is make me sleep with you." She shook her head in disbelief.

"I was just experimenting at first, I thought it was a prank." Lily's voice trailed off as she again recalled making out with her entire sorority.

Chloe raised her eyebrows at Lily. "And in the hallway just now?"

"If someone from our sorority apologises to someone, they have to do anything sexual the person asks. I told you I was sorry, and you..."

"Well, that's your own fault. Why would you make a rule that applied to yourself?"

"That's the limitation. I can only make rules that would affect me as well. And for what it's worth, I truly am sorry."

Chloe let out an exasperated sigh. "That's nice, Lily, but I'm not forgiving you that easily. Even aside from last night, you've trapped me naked in your dorm room."

Lily thought for a moment, trying to come up with a plan. "I told you to stay naked, right? So I can just tell you to wear clothes again. Put on your clothes."

Chloe didn't move from her spot. She looked at Lily with cold eyes. "Well?" Lily asked.

Chloe sat on the edge of the bed, grabbing her panties and bringing them to her feet. Lily watched as Chloe started to dress, unintentionally gave her a perfect view of her pussy. As Chloe struggled to get her panties on, it seemed she couldn't pull them past her knees. After a moment, she threw them to the ground, frustrated.

"Maybe it's because the command isn't something sexual?" suggested Lily. "Chloe, pull on those panties as sexily as you can."

Chloe rolled her eyes, "I'm glad you're having fun with it," she quipped sarcastically.

Chloe stood up, taking a deep breath as she began to perform a reverse strip tease for Lily. Slowly and seductively, she turned her back to Lily, who felt the heat build between her legs as she admired Chloe's firm, round ass.

Next, Chloe bent over at the waist, legs parting slightly as she inspected her panties on the floor. This position not only exposed her pussy, but also allowed Lily to get an up-close view of Chloe's perfect tight asshole. Chloe reached out to pick up her panties, grasping the thin material between her fingers.

With a swivel of her hips, Chloe turned around and slowly lowered her panties to knee-height, then tried to step into to them. She slowly pulled them up, but once again could not bring them past her knees.

Chloe sighed, then stopped her demonstration. "It's like I can't follow your command. I have to stay naked."

"So I can't overwrite commands. What if I physically make you do it?"

"Lily, I-"

"Come here and let me dress you."

Chloe stepped toward Lily, her naked body on display, and held the panties out for Lily to take. Slowly, Lily took the panties, and knelt down, breathing in Chloe's scent. She lifted Chloe's feet, placing them in the leg holes, and slowly began guiding Chloe's panties back up her legs.

Chloe's body trembled, trying to keep still as Lily's hands slid her panties up her legs. But it was no use; as the soft fabric was brought higher, Chloe struggled against Lily, pushing the panties away.

Lily thought it through. "Maybe if I tie you up? Then you can't stop me from-"

"Enough!" Chloe yelled, exasperated. "I don't want to be your guinea pig."

"I'm just trying to help."

"Well, you're not helping. Why can't you just delete the rule?"

"Of course, the app!"

Lily searched the floor of her dorm room for her phone. Retrieving it from her jeans pocket, she pulled it out, only to find it on three percent battery.

"Well?" asked Chloe.

"I'll try."

Lily opened the app and looked through the list of rules she had created.

"All members of the Alpha Sigma Sorority must greet each other with a sensual kiss on the lips."

"If a sister wants another sister's attention during conversation, she must gently trace a finger along her thigh until she makes eye contact."

"If a sister notices another sister has hard nipples, she must find a way to discreetly touch or caress her."

"When a sister is complimented on her appearance, she must accept it and indulge her audience by revealing more of her body."

"When a sister hears her middle name being said, she must flash her breasts to the person saying it."

"If a sister says she's sorry to someone, she has to do any sexual things the other person asks."

Lily tried clicking on each rule, but all that did was show the awareness settings. It seemed the default was knowledge and acceptance inside the sorority, but a normal reaction outside of it. In her drunken state, Lily had unchecked the sorority boxes for the apology rule, which is why Chloe was suddenly asking questions about it. It didn't seem the options could be changed once the rule was made.

Lily looked for a delete or modify option, but could only see three options: add new group, add new rule and a help icon.

Lily clicked the help button, and then typed "delete rule" into the search. A message popped up on the screen: "You cannot delete a rule. Rules are permanent until they become invalid."

Frustrated, Lily searched "invalid rule". A new result appeared "A rule is invalid if the user cannot be affected as a target."

Lily sighed in defeat. "I don't think you can delete or change rules."

Chloe angrily blew air out of her nostrils. "Bullshit, you just want to keep me naked."

"I swear, you can't do it."

"Prove it, then," Chloe reached out her hand. "Hand me the phone."

Lily paused for a moment, and considered. The app was clearly magic. Would Chloe even be able to see it at all? Would she be able to make rules? Would she be able to see Lily's rules?

"Well?" Chloe asked, expectantly. "I knew it was bullshit."

"Fine." Lily acquiesced. With no other choice, Lily handed her phone over to Chloe, with the app screen open.