Okay, so she didn't actually just straight up give her dog to him! She left the pooch in his care!
Also there wasn't actually any dust.
ANYWAY, the point is that we're proud of Amanda Seyfried for being so focused on her body and the state of it! We bet she feels awesome afterwards anyway, and who doesn't love that feeling??
Plus we bet Justin had a fine time walking the puppy! Win/win for errrrybody!
[Image via Splash News.]