He doesn't know why he's not expecting Minami to catch on that quickly. In retrospect, it's kind of a silly assumption. But it catches him off-guard when Minami rolls his own hips back, figures out how and why this angle is a little better, and he makes a startled, moaning noise, sharper and louder than he wants it. He muffles himself in Minami's neck a minute later.

There's a thought, flitting through, about how teenaged and messy this is, how stupid, how little he deserves anything like this. But Yuuri is feeling something, even if it's just physical pleasure (and he thinks it's something else, but can't sort it) and it's the first time he's really felt anything in weeks and it's overwhelming in it's intensity.