Sameera Reddy and Viveik Oberoi are best of friends off screen but need to play enemies on screen in their next flick. "We actually had a blast on the sets as well as off the sets. It was almost like I was working with a good friend of mine and not just a co-actor. The role demanded that we should be fighting with each other throughout the film and we actually had a lot of fun doing those scenes. He is an intense actor who prepares a lot and that worked for many scenes," says Sameera.