London, Mar 21 ''Ghostwriter'' star Ewan , who will turn 40 this month, has decided not to do any nude scenes in future films. Ewan says he wants to avoid the embarrassment of doing such scenes with considerably younger women. Ewan says he doesn''t want to follow the example of other leading Hollywood men, who have continued to be seen romancing significantly younger women on film, despite advancing years, the Daily Express reported. "I''m getting older and the actresses stay younger. I don''t want to become Clint Eastwood, where his love interests seem 50 years younger than him. You never want female co-stars to feel like you''re taking advantage of the situation. Anyhow, sex scenes are terribly exposing and rarely of any use in learning about character," he said. Despite his new self-imposed nude ban Ewan, who is married with three children, does not regret stripping off in such films as ''Trainspotting'' and ''Velvet Goldmine''. "It''s all about life. We''re naked at the end of the day and we''re sometimes naked in the middle of the day if we''re lucky. It may seem like I''m obsessed with sex but it''s actually the opposite." The actor will be next seen in thriller ''Haywire'' alongside 28-year-old Gina Carano.