United Kingdom, Feb. 24 -- Maria Shriver didn't realise that her son Patrick Schwarzenegger was naked in 'The White Lotus'.

The 69-year-old author admits that she was focused on her son's face as she watched the risque scenes he has as sex-crazed Saxon Ratliff in the new season of the hit TV show.

Maria - who has Patrick with her former husband Arnold Schwarzenegger - told People: "My kids were like, 'Did you see that?' And I was like, 'No. What?'

"So that shows you - a mother's eyes are always on the kids' eyes."

Shriver is delighted that her son has landed a role on the acclaimed HBO series as it is the culmination of years of hard work.

She said: "I was so happy for him because he's worked so hard. He takes classes, he's really be...