This is really crude but I laughed my ass off! Animation shearing the perverted sheep. Drastic Measures. Loading Unsubscribe from Drastic.
He's turned on by the way it feels, like how someone softly touches you and the vibrations hit you and it feels good and it turns you on.
Re-arranging () gives the apparent shear stress (ASS) acting on any vertical interface at a given lateral position within the cross section, where the ASS is.