Justin Timberlake, Jessica Biel celebrate engagement

Los Angeles: Actors Justin Timberlake and Jessica Biel celebrated their engagement in a private affair with family and friends.

The couple celebrated the event at HomeMint collaborator Estee Stanley`s house in California.

The 31-year-old actor had proposed marriage to Biel in December last year, four years after dating each other.

While Timberlake wore a black suit and fedora, his 30-year-old fiancee looked stunning in a leopard-print halter dress along with hot pink shoes and a belt.

"Jessica and Justin were mingling both separately and together throughout the party. Jessica seems to be very close with Justin`s friends and vice versa. You can see that they have been dating for a long time and really know each other`s friends and family well," usmagazine.com quoted a source as saying.