A conversation on the way back, and Kurumu gets devious again.

Kurumu went off ahead back to Tsukane's dorm room as Tsukane carried Moka. "...what exactly did Gin mean when he said you caught him off guard earlier?" Moka then asked him. "And what you said about him trying to frame you?"

"Eh? Oh that, did you hear about the commotion that happened at the girl's changing room?" Tsukane asked.

"Yeah... I heard someone caught a pervert taking pictures on their phone, and the girls in question beat up the culprit a little before he managed to escape," Moka replied. "...wait, was that you and Gin?"

"Yeah," Tsukane chuckled, explaining what happened, how Gin had tried to frame him, and how he managed to turn the tables on him. "Kurumu actually saw the whole thing from a distance, found that out a little later."

"Teehee! Served him right!" Moka giggled.

"We should report on that tomorrow... One more consequence for Gin couldn't hurt," Tsukane mused.

"It might hurt him," Moka pointed out.

"I meant it couldn't hurt us," Tsukane clarified with a slightly vindictive grin.

...

Meanwhile, back at the dorm, Kurumu was alone again, knowing she had a few minutes with the Sex Note. "What to do with Moka this time? Oh wait, I know! I can let her and Tsukane choose a little something, and I can specifically affect Inner Moka this time!" she giggled pervertedly. She opened the Note, and paused. "Actually... Would it still work if I tore out a page or two, and wrote on those?"

She considered for a moment, before tearing a few pages out of the back of book, to minimize the chance of Tsukane noticing for a while, but she found she didn't need to bother as the torn edges seemed to fade and a few more blank pages were added. "Huh! Neat!" she grinned, before taking a loose paper, and testing it real quick by writing, "Kurumu Kurono's boobs will grow a full size for five seconds, before shrinking back to normal."

She paused, and gasped a bit as she felt her chest strain against her top and bra. "Perfect!" she grinned, realizing she no longer had to specify invisible entries, nor wait for an opportunity to be alone with the Note, and quickly began writing another entry onto the loose sheet even as her bust shrank back down. "Moka Akashiya's inner self will be allowed control upon returning to Tsukane Aono's dorm room. Upon assuming control, she will tell him he earned a prize, and give him three options of her choosing for him to put one in the Note affecting her, the options being ones that lie just outside her comfort zone regarding perverted matters." Satisfied, she pocketed the papers she had pilfered, and stripped naked, before sitting on the bed, just as Tsukane arrived with Moka again.