Can I Keep You

you ask if you can keep me.
i tell you i have to go home later.
you know i know
that's not what you mean.

you ask if you can keep me.
i tell you
that is my favorite line in Casper.
you are not amused.

you ask if you can keep me.
what will i say this time?
i should like to say yes,
for as long as you can.

"Can I keep you?" you ask,
not tonight, my dear,
you cannot keep me just yet,
but you may detain me whenever you like.