An American pastor who denounced Facebook as leading to adultery has admitted to having a three-in-a-bed affair.Pastor Cedric Miller offered to resign in a speech to his congregation at Living Word Christian Fellowship Church in Neptune Township, New Jersey on Sunday.The 48-year-old had a threesome with his wife and a male assistant 10 years ago.Mr Miller apologised for what he said was a foolish transgression from his past. He offered to step down as senior minister if church leaders found him unfit to serve.The pastor had called on church leaders to delete their Facebook accounts, claiming the social network site could lead to infidelity.Source: orange news