Left Over Right, Right Over Left.

An interesting question for the psychologists out there. Mrs Frost is one of the lefy handed community and has noticed that when she sits on a sofa or chair with her legs crossed they are left over right. She has also noticed that right handers in the same position sit with their limbs crossed, generally, right over left. Does left handedness affect they way that people arrange their limbs in such situations ?. I would be very surprised if some research has not been carried out on the subject by somebody, somewhere.