BOSTON (Reuters):

A federal judge in Boston has dismissed a suit by two families who wanted to stop a Massachusetts town and its public school system from teaching their children about gay marriage, court documents show.

The families last year filed the suit asserting that the reading of a gay-themed book and handing out to elementary school students of other children's books which discussed homosexuality without first notifying parents was a violation of their religious rights.

Entitled to teach

Federal Judge Mark Wolf ruled on Friday that public schools are "entitled to teach anything that is reasonably related to the goals of preparing students to become engaged and productive citizens in our democracy. Diversity is a hallmark of our nation. It is increasingly evident that our diversity includes differences in sexual orientation," he said.

He said the courts had decided in other cases that parents' rights to exercise their religious beliefs were not violated when their children were exposed to contrary ideas in school.

The complaint filed against the town of Lexington, about 12 miles (19 km) west of Boston, had said the school had "begun a process of intentionally indoctrinating very young children to affirm the notion that homosexuality is right and normal in direct denigration of the plaintiffs' deeply held faith."

The book that sparked the case was King & King which tells the story of a crown prince who rejects a bevy of beautiful princesses, rebuffing each suitor until falling in love with a prince. The two marry, sealing the union with a kiss, and live happily ever after.