Lesbian Marriage?

The brilliant Larry Hammer brought up a point on Dueling Modems. Let’s take the stray passage from Leviticus that is cited as why homosexuality is against God’s law (NIV, less poetic but plainer than King James):

Leviticus 20:13
If a man lies with a man as one lies with a woman, both of them have done what is detestable. They must be put to death; their blood will be on their own heads.

Supposing one is to take this as literal truth (which would require killing all homosexual men), it is silent on the issue of lesbians. So, why is there any issue at all with women getting married to each other? The divinely inspired word of God doesn’t say they can’t. Ladies, have at it! God is willing to look the other way on this.