While this attack ad against Republican New York State Senator Mark Grisanti is absolutely atrocious, it was never actually sent to voters. Grisanti voted in favor of marriage equality.
As with many "TV advertisements" that make it to YouTube, but never on air, this is meant to shock and titillate and drum up publicity without actually costing the group a dime.
It was produced for "The Committee to Save the Eric County Republican Party" which is connected to former mayoral candidate in Buffalo, Matthew Ricchiazzi. After the election, Ricchiazzi came out as bisexual. The photos are stills from gay porn company Corbin Fisher.