They certainly are on the fast track together, as Kate Hudson and Matt Bellamy recently announced that they are expecting a baby. And word has it, they're now engaged, as well.

Although nothing has been confirmed just yet, several reports are suggesting that the “Fool’s Gold” babe and her “Muse” man celebrated their engagement on Monday night (January 24).

Making her first appearance since announcing her pregnancy, Kate Hudson was spotted at Heathrow International Airport in London, England earlier today (January 24).

The “Fool’s Gold” babe was joined by her boyfriend/babydaddy Matthew Bellamy and a massive amount of luggage as she left the terminal, carrying a copy of Gregory David Phillips’ new book “Shantaram.”