After Hobbs caught them in Rio, they didn't get ambushed, and they didn't get away. (AU diverging from Fast Five.)

“Sit down,” the doctor said. He took blood, three vials filling up dark red. “Any medical conditions?” “No,” Dom said, and then his mouth kept going and said, “What if I want to volunteer for bonding?” The doctor peered at him over the glasses. “Do you want to volunteer for bonding?” It hung in the air. Dom felt it like a noose around his throat, squeezing. Twenty-five to life. “Yeah,” he said.

“Sit down,” the doctor said. He took blood, three vials filling up dark red. “Any medical conditions?” “No,” Dom said, and then his mouth kept going and said, “What if I want to volunteer for bonding?” The doctor peered at him over the glasses. “Do you want to volunteer for bonding?” It hung in the air. Dom felt it like a noose around his throat, squeezing. Twenty-five to life. “Yeah,” he said.