Note: for differentiating's sake - V's mother is the V Maternal Unit, whereas L's can be the MotorCycle Mama or the L Maternal Unit or any derivate of the logical...you get the picture...
V Maternal Unit: I must've been a bird in my previous life.
V: No. You can't stand heights.
V Maternal Unit: (after a moment's thought) Right. So I can't have been a bird.
V: Unless you were penguin.
V Maternal Unit: Not likely. I don't like cold.
V: What about a lyre bird?