Well, trashing Lawrence v. Texas and re-criminalizing sodomy would be a good start. There was absolutely NOTHING wrong with criminalizing homosexual sodomy. As recently as the early 1960's every state in America criminalized this destructive, immoral behavior to some extent.
It didn't even take a decade after the sodomites took down the APA that AIDS made its destructive appearance. That alone warrants public safety considerations in banning this behavior.
I don't know how you are going to enforce something like this between consenting adults. Are you planning on busting into peoples bedrooms in the middle of the night with a swat team in hopes of catching them?