Justin Bieber, Selena Gomez To Move Into $10.8-Million Mansion (Photos)

When you turned 18, how did you celebrate that milestone birthday?

Some bought cigarettes. Others got excited about voting.

It could be pretty safely assumed most didn't follow Justin Bieber's lead and move into a $10.8-million mansion with a 19-year-old cutie of a girlfriend.

The London Daily Mail reports that Bieber, who just reached the age of majority last week, will have some serious unpacking to do alongside main squeeze Selena Gomez. The "Baby" singer's new 9,400 square-foot Hollywood Hills pad's opulence begins with five bedrooms and a massive living room with fully retractable glass walls.

In the words of Shannon Elizabeth in "Thirteen Ghosts," we sure hope the bathroom's in the basement.

After many a gourmet kitchen-prepared dinner in the floating dining room, one could imagine many a night slipping off to the humble home's private movie theater, or perhaps the gym, maybe the massage room, or eventually off to the bar. The phrase "the world is his oyster" has never been more true. Here's hoping there's choice parking for the 2012 Fisker Karma electric car that manager Scooter Braun surprise-gifted him with on "The Ellen DeGeneres Show" recently.

Be assured, the previous owner wishes the couple's relationship well: "Two And A Half Men" star Ashton Kutcher has been renting the place out at $50,000 a month since he split with wife Demi Moore this past November.

Check out the stunning photos below. Then once more, let the Bieber-hate flow through you. The Dark Side understands.