Crash Bunny really really REALLY likes his food... ?

So...Ive noticed if i give Crash a tiny strawberry top or a little green bell pepper.. He wolfs it down but also.... He does this body tingle thing.. His back fur tingles and moves... Ive seen my dog do this and raise her fur up on end while eating the most delicious egg in the world...Any body seen this in a rabbit before? Im so puzzled :lol:

Aww it sounds like he must really love his little food treams, so cute xx