I'd be a durian
many thorns to chase away those I dont want in
But you'd also stink!
Prickly, disgustingly sweet, with a Hard centre.
I'd be a coconut.
I'd be an avocado. Unassuming, seemingly soft, but with a hard center. Mix me up with a few choice ingredients, and I can bring that extra something to a gathering without stealing the show.
You can't cook me (ie: change me), or keep me on the shelf for too long; I'll go bad.