"I am plenty adventurous but that doesn't really sound like a normal sort of adventure~" she said mostly rhetorically. If she had any more of an explanation to go along with this, she wouldn't get a chance to voice it. Natsumi thought herself prepared for Youko, she'd even re acclimated herself so she knew mentally what she was getting into. Even so, as his shift finally allowed him to enter her person, she felt a feeling akin to something she hadn't felt since the very first time it'd happened. An almost instantaneous filling sensation which she wasn't prepared for would cause a flourish the likes of which her body wasn't prepared for. "Ah~" she chimed as she leaned a bit further into Youko, she needed a moment to gather herself before this continued, because of the difference in feeling she was presently experiencing. There were stars in her vision as she felt rather light headed, she seemed to be almost on the verge of fainting. Almost.