United Kingdom, Dec. 12 -- Sydney Sweeney has confirmed her "boobs [are] real".

The 28-year-old actress was quizzed about her much-discussed assets by her The Housemaid co-star Amanda Seyfried during a lie-detector test, and it was confirmed she was being honest when she insisted she hadn't had her chest surgically enhanced.

During Vanity Fair's infamous polygraph, Amanda said: "I just have to ask, are your boobs real?"

Sydney notted and said: "Yes."

The 40-year-old actress then stayed on the subject and asked: "Have you ever had any work done on them?"

The Euphoria star shook her head and said: "No, I've never gotten any work done anywhere."

The polygraph examiner immediately confirmed Sydney's answers were "truthful".

Amanda then...