When Manny is being interviewed by Bernice, she has long earrings. When she is walking and almost hit by a bus that same day, she has small hoops. When she goes to the doctor's office with Emma, she has long earrings again.
When Manny unties her top to flash Peter, you can plainly see that she's wearing a backless bra and isn't really topless. If you look under her right underarm when the camera shows her backside, you can see the edge of the nude colored backless bra.