A devout Christian couple from Florida are championing an unusual evangelism technique – swinging.
Christy and Dean Parave met online eight years ago, and began swinging after being approached in a DIY store.
They now regularly swap partners with other couples.
While most would regard sexual promiscuity as conflicting with their religious beliefs, the Paraves, who both compete as bodybuilders, believe that they can use their newfound connections to share the Gospel.
"God has put me here to spread his word and our lifestyle community is a great place to do it," Dean told Barcroft Media.
"You can't get closer to someone than having sex with them."
He believes that he's been given a unique opportunity to share his faith with those who might otherwise never hear about Jesus.
"I'm getting to people that will probably never even visit a church," he said.
"God's not gonna put a lion with a bunch of elephants, so what's he gonna do? He's gonna put a swinger with a bunch of swingers to spread his word. Simple as that."
"If all the swinger are sinners what's the best way to talk to the sinners? To join them, right?"
It's an unconventional pastime for a Christian couple, but the pair insist they have a mutual understanding.
"I don't think God would be mad at what we're doing. At first I was conflicted but the more we looked at it the more it makes sense to us," Christy explained.
"Dean and I are both in agreement with this lifestyle, so we're not committing adultery. God put people on the earth to breed and enjoy each other – I feel God is always with me and he has put us here for a reason."
The Paraves have even set up a website, www.fitnessswingers.com, to help other like-minded couples – those who have an interest in faith and healthy living – to find one another.
Their Twitter account reveals a rather bizarre mix of swinging resources, Bible verses and links to worship songs.
They insist that they remain committed to a single goal, however.
"If I can go to the next swinger's event and get 10 people to believe in Christ...my job is done," Dean said.