The dive through the mechanic's shop has her a little more worried and she grips Bill a little tighter and tucks her chin in to make sure she doesn't lose anything to the maneuver. When they come out fine on the other side, though, she laughs again. The sheer control Bill has while he does this makes it all the more exciting and... well, fun. It's going to make having to land eventually be less of a let down now that she's certain he's been giving her the full treatment.