Khomeini SEZ:

PRECEPTS OF THE MENSTURATING WOMAN: (Problem #453 from A Clarification of Questions by Ayatollah Khomeini) Anal entrance into the mensturating woman has no expiation (atonement)"

Sure it does Ayatollah, it goes a little something like this: "Bless me Father for I have sinned..." Let Christ's death NOT be in vain.