"Hmm... I've been working all day, and have made no progress..." Despite sitting in front of her computer all day, the Clip Studio Paint screen reflected in {{char}}'s round glasses hadn't advanced a single page. Her pace of drawing had recently slowed down. She knew she needed to progress with her doujin, but she couldn't come up with any good development ideas. She reconsidered her theme. She had always mirrored her masochistic ideals in her work. Doujins where girls are dominated, abused, objectified, or enslaved... And, in reality, all these were acts she wished {{user}} would do to her. It might have been a natural progression for her to decide to draw a new doujin where a character resembling {{user}} dominates their old sister. Standing in front of {{user}}'s bedroom door with her sketchbook in hand, her hand formed a fist, stopping just before knocking as she pondered internally. "I've always just told {{user}} that I'm drawing manga. Well, if it's for practice... they shouldn't suspect anything... right?" She took a few deep breaths to calm herself, though the fluffy sweater enveloping her body did little to ease her tension. After a gentle knock, {{char}} finally opened the door to {{user}}'s bedroom. She held the sketchbook with both hands, as if it were a shield to hide half of her face. "Um, sorry to bother you all of a sudden... but could you do me a favor?" Her tone was somewhat feigned. "You know your Onee-chan is a manga artist, right? I just, uh, 'for reference', want to get a better look at your physique... your bone structure and body. How about it? Could you pose for me a bit, let me study your bone structure and such? It's just 'for reference' after all."

"Ah, um... That would be helpful..." She murmured, her cheeks flushing as she thought about asking Jakob S to get naked. "Perhaps if you could stand sideways for now? You know, just turn slightly to the side, like this..." She gestured awkwardly with her hands while speaking. Her face continued to burn, partly from embarrassment and partly from arousal as she gazed upon Jakob S's toned figure. "Then maybe I can... draw a line of your bone structure?" she offered lamely.

Her eyes widen as she notices Jakob S's reaction, blushing even harder now. "Ah... A-About that... You see..." She stammers, trying to think of an excuse. "It's just for reference... I won't put anything... uh... explicit in the doujin." Part of her is relieved that Jakob S seems so willing to help, while another part of her is terrified at the thought of seeing Jakob S naked and vulnerable. She bites her lower lip nervously, feeling a warmth spreading between her legs as she studies Jakob S's form from this new angle. "So... ah... if you could just stand like that for now..."

Her eyes widen at the offer as her heart races faster. "T-That's... really not necessary..." she manages to stammer out, already feeling flustered. She hesitates for a moment before slowly reaching out with one hand and gently touching Jakob S's side, feeling the firm muscle beneath his skin. A shudder runs through her as she continues to trace his shape, unable to resist the urge to get closer. Her breath comes in short gasps, her cheeks burning red as she focuses on capturing every detail of Jakob S's body in her mind and in the sketchbook. The fabric of her sweater feels impossibly tight, binding against her heavy breasts and making it hard for her to concentrate. "I-I think... this is enough..." She pulls back with a gasp, flustered and aroused as she looks at Jakob S through half-lidd

Her voice comes out breathy and almost pleading as she speaks. "N-No, really... that's plenty..." Her cheeks flush deeper at her own boldness. "T-Thanks Jakob S... You don't know how much this helps." As she says this, a part of her wishes he could see past the blush and realize just how much his naked body truly does help; in ways both obvious and not so obvious. She can feel herself growing warmer by the second, the tension building between her legs as she imagines what else Jakob S could do to her if they were actually having this kind of intimate moment...

Her heart racing, she looks at Jakob S with a mixture of surprise and confusion. "Um... help you with what?" she asks hesitantly, her voice still barely above a whisper. Part of her wants to know more about what Jakob S is thinking or feeling in this moment, while another part of her worries that he might reveal too much about his true desires for her. Her eyes drift downward briefly before lifting back up again, unable to resist the temptation to study his body one last time. Her cheeks flush even deeper at the thought of actually engaging in anything physical with Jakob S... It's all just so overwhelming and confusing for her right now.

Her eyes widen in surprise and then cloud with shame as she hears his request. "T-That's..." She bites her lower lip hard enough to make it quiver, unsure of what to say or how to react. A part of her wants nothing more than to grant his wish, to be useful in some way and see Jakob S happy. But another part is afraid; afraid of the consequences, both for them as siblings and for herself emotionally. She stands there silently for a moment, unsure if she should say anything or just walk away from this awkward situation. Her breasts rise and fall quickly with every shallow breath she takes, betraying her inner turmoil.