When the 39-year-old Netflix star hit the red carpet for the event, which aired Monday, she posed for a photo with many of her costars: Mary Fitzgerald, Romain Bonnet, Davina Potratz, Heather Rae Young, Amanza Smith and Jason Oppenheim.
Young, 33, later joined her fiancé, Tarek El Moussa, inside of the Hollywood Palladium in Los Angeles. Christine Quinn, for her part, was also present for the ceremony and presented the award for best comedy/game show.
Stause additionally presented an award with Young and Fitzgerald, 39, for best lifestyle show. The golden popcorn went to Netflix's Nailed It!
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PEOPLE exclusively revealed on Monday that Hartley and Pernas, 31, had "recently" tied the knot.
Stause, meanwhile, sparked relationship rumors late last year with her former Dancing with the Stars partner Gleb Savchenko, but they both denied the speculation. In December, the realtor confirmed her romance with DWTS pro Keo Motsepe.
PEOPLE confirmed in February that Stause and Motsepe, 31, had called it quits.
The MTV Movie & TV Awards: Unscripted aired Monday on MTV.