American TV star and model Olivia Culpo celebrated a unique prom night during self-isolation with her National Football League (NFL) star boyfriend Christian McCaffrey, 23.

The couple partied with Olivia's sister Sophia and Christian's mother Lisa besides other family members. "Tonight is prom night with our quarantine crew," the Sports Illustrated model Olivia wrote on social media alongside pictures and a video of their celebration. "Lisa made all the boys do a "promposal" and now's she torturing all of us with chores," added Olivia, 27.

The outdoor party in a cocktail lounge area could also be a celebration of Christian's four-year $64 million (R484 crore) contract extension signed with NFL side Carolina Panthers in April.