Scientology Siblings! Isabella Cruise Parties With Connor For His 18th Birthday In London

Jan. 24 2013, Published 11:43 a.m. ET

Tom Cruise and Nicole Kidman’s kids seem to be spending a lot of time together lately!

Connor, who officially became an adult last week when he turned the big 1-8, celebrated his adulthood with a swanky soiree in London, where he was joined by his somewhat mysterious sister Isabella,and RadarOnline.com has the photos.

Bella, whose hair was dyed a dramatic orange shade, headed into Boujis nightclub in South Kensington with her younger brother; she was wearing a black blouse, black jeans, an army green jacket and red Dr. Martens boots.

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Connor, who DJ’ed a set at the exclusive club, sat with his 20-year-old sister and some pals at a table, where they reportedly drank Grey Goose Vodka and did some shots.

The brother and sister duo reportedly left the club around 2:30 a.m. through the back door.

Nicole recently opened up about her adopted, and at one time estranged, children and their controversial religion to The Hollywood Reporter.

“I have two children adopted with Cruise who are Scientologists – Connor and Isabella – and I utterly respect their beliefs.”