On a recent trip to Miami, Kate Hudson and her fiancé, Muse frontman Matt Bellamy, were spotted showing some serious PDA in front of Hudson's 9-year-old son, Ryder. Click through to see the pics, and tell us what you think — is showing romantic affection in front of a child this age healthy or uncomfortable for the kiddo who has to witness it? One thing's for certain: Kate and Matt are passionate about each other!