At a press conference in support of a proposed gay marriage ban amendment in North Carolina, Rev. Johnny Hunter of the Fayetteville-based Life Education And Resource Network (LEARN) said gay couples should not be allowed to marry because they cannot consummate a marriage.

To illustrate his point, Hunter held up a lock and inserted a key into it.

“The anatomy is not right for a homosexual to even consummate a marriage,” Hunter asserted. “What it takes to consummate a marriage is a lock and a key.” (The video is embedded in the right panel of this page.)

Lawmakers will return to Raleigh on Monday to begin a special session on constitutional amendments which will consider whether to send the marriage amendment to voters in 2012.

Tuesday's news conference was the second to be held by House Speaker Pro Tempore Dale Folwell. At last week's presser, House Majority Leader Paul “Skip” Stam argued that the marriage amendment would protect children and that any argument in favor of gay marriage would also support incest and polygamy.

Opponents of the amendment will gather on Tuesday across from the state's Legislative Building. Country music singer Chely Wright, who married her girlfriend in Connecticut last month, is expected to address the crowd and meet with lawmakers.

(Related: Majority of North Carolina voters oppose gay marriage ban amendment.)