You've never looked with lust! That's hard to believe.
It is very difficult not to notice physically attractive people or people who are not dressed modestly. But we can always choose to keep looking, look away, or just not focus our eyes or mind on their body.
Are you saying that you have never allowed your eyes or thoughts to linger (stay) sexually on someone after you first noticed them or on a picture you saw on magazine cover in a shop.
If you bought the magazine for the picture... you are guilty!
Be honest, have you looked with lust.