No one has to be confused any longer.

NBA player Jason Collins came out earlier this month, becoming the first openly gay player in mainstream professional sports in the United States. Collins has been the beneficiary of tons of support. So has his identical twin brother Jarron – except he’s not gay.

Appearing together on “Jimmy Kimmel Live” on Wednesday night, Jarron described an encounter he had in an airport bathroom where a fan confused him for Jason at the urinal.

“No, that’s the other one,” Jarron recalled telling the man, as the crowd laughed.

Kimmel took matters into his own hands, giving Jarron a t-shirt that reads: “I’m the straight one.”

“It’ll save me a lot of time,” Jarron said with a laugh.

mraimondi@nypost.com