[ It's the smell that alerts him more than anything (even though the length of her hair and softness of her body should do the trick). It's all wrong. Wrong enough to wake him up with a bit of a start, muscles tensing for a moment until he remembers and relaxes against her again.
A content exhale. This is still so new and more than a little weird, but... it's good. They're friends and they've gotten a little intimate lately but it's all good. Innocent. ]