Allegorical Self-Portrait as The False Guinevere

Darksome other,
twin, sister
in us all,
I can steal your
selfhood right from under you.
I can slither into your bed sheets,
fit into your silken brocade,
filch your fine ephemera,
braid your crown into my hair,
deceive your knights,
and take your husband into my legs.
Let’s be honest, he doesn’t know
the subtle differences between
women, between sisters.
If in the most melding of moments
he cannot detect a knock-off,
what good is he, sister?
Now, you’ve already cuckolded
him, and you have your pretty, muscled man.