He was just chasing tail.
A: Lettuce pray
Alien 2: Celebrating the existence of their mothers. Alien 1: I ate my mother. Alien 2: As did I.
A: They want to make ends meet.
A: No one else will do it for them
Leave them to slug it out.
Namaste
Chasing parked cars.
More storage space.
Because she can't fit into D shells