A brother and sister are behind bars after allegedly having sex in a tractor trailer parked in a church parking lot.

Police say Christopher Buckner, 20, and her half-brother Timothy Savoy, 25, admitted to committing incest three times in a church parking lot outside of Savannah, Georgia after watching the Ryan Gosling romance “The Notebook.”

(For those not familiar with the cult film, it doesn’t have a happy ending).

Police were alerted to the pair’s antics early on Tuesday morning after responding to a call about a prowler in the area.

Sheriff’s Office spokesman David Ehsanipoor told the Savannah Morning News deputies went to inspect the area after a call at about 4:30 a.m.

During their patrol of the area they spotted a man and woman walking down the road. The male said he was walking the female back to her house.

Deputies determined that the pair were brother and sister and that they had just had sex in a Kenworth tractor trailer, which was parked at Countryside Baptist Church, Ehsanipoor said.

The pair have been charged with incest, aggravated sodomy and prowling and are being held in the Effingham County jail.