Quis leget haec?

i crawl back week after week to her,
that sexy seductress Saturday -
so elusive, she waits til the end of the week;
I can never say no, I can't,
and she'll grab me and pull me into her grasp
by the end of the day. We'll call it an evening,
and somehow, every time she sneaks away in the night
and I wake up next to an unrecognizable face, her sister.
Twin vixens, Saturday and Sunday, a devil and a saint -
but you know, at the crack of dawn, even Sunday
can be a bitch.