my boy who turned age 5 recently watched a porn movie by mistake ( 5 to 10 seconds ) and as i entered the room i changed the channel , he was recently playing doctor and patient with his friend she happens to have the same age but after watching the movie , he asks more recently to be alone in his room , and using the doctors stuff to play withh all the time ,how do i react to his behavior , did watching this movie will leave a print in his life dont know what to do , should i leave him at ease to do what he wants , or should i interfere and how . thank you