Sean Penn: Still Givin' the Ladies Whiplash

8/20/2007 2:54 PM PDT BY TMZ STAFF
Young Hollywood actors have some fierce competition -- from 47-year-old Sean Penn! Hot dad!

The actorvist was spotted in Malibu showing everyone what a big ol' hunkaman looks like. He don't need to bring sexy back -- it never left him!

The Oscar-winning globetrotter was relaxing beachside this weekend, just being a regular sexy beast on duty. This kind of aging could become a spectator sport!