from Mansfield Park, who burns for her cousin, wants him to burn for her in return and wonders how to make him turn his passions loose.
When cousins do ignite their hearts
and speed their blood by fits and starts,
they may forget that genes were meant
to mix with those of foreign bent,
for thwarted nature causes pains
to children born with crookéd veins.
You burn for him but still forget
you'll carbonize those you beget.
