LINCOLN COUNTY, Oklahoma - A strange stunt played out Tuesday on a highway in Lincoln County and one woman suffered a serious head injury.

“We were looking at somewhere around 10 minutes,” Lincoln County Sheriff Charlie Dougherty said.

That's a long time before noticing your friend is missing from the front seat of a moving vehicle, but that's exactly what authorities said happened in the early morning hours of Tuesday.

They said three women, all just under 21, were severely intoxicated and ended up doing some pretty bizarre and dangerous things.

“The driver was hanging out of the driver's window,” Dougherty said. “The passenger was hanging out of the passenger window for whatever reason, and the person in the middle was driving the car. They were driving about 55 miles per hour when they realized the passenger was gone.”

They went back to find her, but it apparently took a while.

“Fifty five miles an hour, and you haven't seen her in about 10 minutes, maybe?” Dougherty said. “You've covered a lot of ground.”

They eventually found her and called 911.

That passenger was airlifted to OU Medical Center with head injuries. The other two, Shelby Soderstrom and Holly Ingraham, were taken to jail.

“We arrested both of them for DUI, because they both had control of the vehicle,” Dougherty said. “So, that's a first. I've never seen that happen.”

Both have bonded out of jail, and the case has been turned over to the district attorney.