This is one twisted sister!

An Arizona woman dressed as a nun — and carrying a Bible on her lap — was busted trafficking $90,000 in the synthetic opioid drug fentanyl, according to police.

Esther Gomez De Aguilar, 53, of Yuma was sporting a veil while driving with her husband when an officer pulled them over for a traffic violation in Eloy on Monday, Pinal County cops said.

The cop, who unleashed a drug-sniffing dog, searched De Aguilar and found pounds of fentanyl powder and pills in her purse and stashed under her clothes, police said in a Facebook post.

The couple was hauling a total of 8.5 pounds of fentanyl — enough to kill hundreds of people, cops said.

“You can see they will use any means to conceal what they are doing,” Pinal County Sheriff Mark Lamb said in a Facebook post. “Fentanyl is extremely dangerous. All it takes is the equivalent of 4 to 5 grains the size of sand to kill you.”

De Aguilar and her husband, Jose Aguilar Diaz, were charged with possession and transportation of narcotics for sale.