When had Kimiko decided to pick underwear based on the idea she might have been seen? Well... the answer to that was simply as soon as she entertained the idea that the man with her would be seeing her in them, so basically since her second shower. Regardless, shopping was indeed a couples activity regardless of the item being purchased. In the case of getting the lad undergarments it was just an extra excuse for them to be alone together in a semi-public setting. That would of course leave them open to a bit of public degeneracy, but that didn't matter at present, they had private degeneracy to get to. Still she found it quite comforting that the lad was relaxed enough in the moment to joke with her as she'd come to know he would. A bit of a scoff came from her nonetheless as she found herself responding in kind. "Yes, of course. There are great options for someone with your build~" she mused sarcastically. He was game though, she'd bring up this agreement later.
For now, he continued to explore her exposed flesh with his tongue and even move on to molesting her chest more direction. This caused a sharp intake of her breath before she could even begin answering. "Umm, how about we get you out your pants first~" she commented absently. She still hadn't quite said enough but several of her ideas involved the ability to initiate more direct contact, and presently his own clothes were way more of a barrier than hers. As she rubbed along his manhood her hand took a minor detour, lifting up to gently move his zipper down after undoing the button at his waist. She'd lift herself gently to allow this lad the freedom to remove his pants, which would give her access to both changing her position and being in more direct contact with his lower half once he returned to the same position. If all went according to plan, when she next lowered herself into his lap, she would be able to feel him a bit more directly against her undercarriage.