Rent The Other Brother (2002)

Martin (Mekhi Phifer) has spent his life trying to be a good son, a good brother and a good friend, but his luck with women has been all bad. When he meets a pretty young art teacher, his lack of experience in the booty department is all too apparent. Help is on it's way in the form of Martin's testosterone fuelled brother Junnie, the quintessential ladies man with a silver tongue and a golden touch with the girls.