Here is a link to an article in the Las Vegas Sun about a suit being filed in Utah about a polygamy case, based on the striking down of the Lawrence statue here in Texas.
Here's a key paragraph:
Lawyers representing other polygamists have recently cited the Supreme Court ruling. Last month, the attorney for Tom Green, a convicted bigamist and child rapist, argued his client's convictions should be thrown out in light of the case. The appeal of Rodney Holm - who was convicted of bigamy and unlawful sexual conduct with an underage girl - also cites the Texas case.
I've said all along, if marriage is simply a contract, or a social construct, then if gender isn't key, then number cannot possibly be key.
Next? Age of consent......it's already waiting in the wings.