Orlando Bloom and his son Flynn took a stroll through the Hollywood Hills with their dog Sidi today. Orlando showed off his muscles in a tight tank, while Flynn flaunted his walking skills. It was an extra special afternoon for Orlando, who is just one of many hot celebrity dads, since he was also celebrating Father's Day. Miranda didn't join her boys for the walk, but she's been on the go recently. She stopped in NYC for a photo shoot last week and visited Australia with Flynn at the beginning of the month. Orlando, meanwhile, has been hanging out in LA as he preps for the August release of The Good Doctor.