Robin was rendered speechless by his sister's logic, who felt that he needed someone to babysit him, just because he's nineteen. He suddenly remembered that he was not nineteen but actually twenty. Robin had a few more months to reach the age of twenty, but he preferred to be twenty right now. Maybe that might save him from babysitting a gang member.
"Sis… I'm already twenty!" Robin declared, to the amusement of Adriana, who then asks in an amused tone, "okay… what did you call me?" She didn't wait for Robin to respond before she said, "Robin… you called me sis… so if you are already twenty… What does that make me then?... An eighty-year-old granny?"
