His abs clench as Nanami resists the urge, for now, to press into Haibara's mouth. His head tilts back, and he lets out a soft moan. His breathing's a touch uneven, but he focuses on it, so much as he can.

When he feels Haibara press a finger against him, he pulls his head up enough to look at the toiletries, find the waterproof lube he stocked the shower with while Haibara was out, and hands it down to him. He then presses his free hand against the shower wall so he can relax more.