Devil's Spawn

Jack and Jill, we named them,
the pair of tarbabies to share
our home. Black as Hades,
both brother and sister,
and it has taken no time at all
to convince us they're 
devil's spawn, evading
the curse of nice behaviour
ebullient with the joy of
endless mischief, revelling
in the pleasures that
destruction brings, indulging
in disappearance for the
stealthy challenge of
mounting the excitement
of covert actions certain to
elicit stern rebukes of "No!"
followed by voices that
whimper, "no, not again!"