I am shortly travelling SYD - ADL return with my youngest son (15 years old). I have 2 lounge passes courtesy of Velocity Amex and so does my wife but she is not travelling with us. She doesn't need her lounge passes as she always has lounge access through her ticket when she travels for business. Can my son use her lounge passes which are attached to her Velocity FF account on this trip and if so, how do we do this? We were hoping that both of us could use the Virgin lounges for both legs of this trip.