BooBoo & Fivel Stewart - Teen Choice Awards 2011

BooBoo and Fivel Stewart smile together on the blue carpet of the 2011 Teen Choice Awards held at the Gibson Amphitheatre on Sunday (August 7) in Universal City, Calif.

The 17-year-old actor kept it casual in a collared shirt while sis Fivel wore MINKPINK‘s “Inca” shoulder dress with a bright orange snakeskin clutch.

BooBoo and Fivel tweeted, “The Blue carpet is crazy cool at the Teen Choice Awards!!!”

The 2011 Teen Choice Awards air live TODAY (August 7) at 8 p.m. on FOX. The Big Bang Theory‘s Kaley Cuoco is hosting the show!