Was his erection her fault? Probably? Did that matter? Not at all. Ashikaga Kimiko was many things but she wasn't one to take blame without taking something for herself. If anything there should probably be a few questions about why he chose to rise to the occasion when his tool was under her specific kind of scrutiny. Whatever the case she was happy to continue with her random view, until such a time as it moved. Regardless her quip about hiding homework was something Yugi agreed to though not in an exceedingly direct way. The way he made his claim, Kimiko figured he definitely had some kind of strange paraphernalia that he didn't want accidentally seen. So there were plenty of things he could be, snap shot voyeur, panty thief, random pillows someone sat on? Hm, she supposed none of those were particularly bad, perhaps she should be keeping better track of her own items, so she could figure it out. "Hai hai, keep your secrets~" she said with a gentle side eye.
She'd already decided to tease him, it was far from her natural inclinations to care what kind of things he was hiding. She'd find out eventually. Soon enough Yugi's eyes were opened as Kimiko listed some things he could have with his wake up in the morning and included the option of fellatio disguised among the regular options. It seemed for a moment he hadn't heard her, but then he reacted and she couldn't help but put on her most neutral smile. She looked up from her phone screen as if she hadn't really said anything strange. "Yes, I did say head. What's the matter? You didn't know you could have head with or instead of your drink at breakfast?" she asked with a devious grin spreading across her face. She couldn't help it, teasing Yugi like this was always a lot of fun. If he liked the shifting expressions on her face. She couldn't help but find his random excited behavior and honest body a different sort of amusing.