The sunset ceremony took place at the AT&T Center, where the bride, dressed in a floor-length, silver-sequined Missoni gown, arrived via helicopter. The groom sported a white dinner jacket and black tuxedo pants.
There were many familiar faces among the 130 guests. Big Brother's Chelsea Hart served as a bridesmaid, show alum Matt Hoffman officiated the ceremony, and fellow Big Brother couple Jeff Schroeder and Jordan Lloyd were also in attendance.
For the reception, which was planned by celebrity wedding planner and My Fair Wedding star David Tutera, guests dined on arugula and tomato salad, chicken breast with balsamic glaze and silvery and blue cupcakes from a display designed to look like a wedding cake. Reilly and Villegas changed into a white sequined tutu and bedazzled loafers, respectively, for what Tutera described as a "retrospective of dance throughout time."
Villegas, 32, and Reilly, 27, met while filming Big Brother 12 during the summer of 2010. Their alliance soon turned romantic and they became engaged less than a year later before they both returned to Big Brother 13, Reilly's winning season. The couple also guest-starred on The Bold and the Beautiful and most recently competed on The Amazing Race earlier this year.
Their wedding will be featured on the Dec. 15 season finale of My Fair Wedding: Unveiled, which airs Saturdays at 9/8c on WEtv.