The upcoming adult comedy, Grand Masti seems to be taking its naughty genre, quite literally these days. With the recent news bells ringing, we assume one of the lead actors Aftab Shivdasani is not only getting vulgar on-screen but also is posing naughty on the sets of his upcoming film. Reportedly, Aftab was caught with his pants completely down by one of his leading lady, Manjari Fadnis on the movie sets, and surprisingly, he didn't really look for anything to cover up. Instead, it was business as usual for Mast Aftab as he merrily walked around the room in his 'mouse' pattern underwear with a cat hung on his crotch, as if nobody else was watching him. While on the other hand, Majari freaked out with her loud shriek having caught Aftab in such an embarrassing avatar. Well with this, we are sure that this naughty act might have pulled off a good humor on the movie sets!