Hey Doc,
VH-SEX, was a PA-30 originally bought by Aircraft Rentals at BK, and owned by one Mr J.Cougle, way back around '66.
All clients were asked to be very careful when booking the acft and NOT to ask the delightful 'June' for .....
At the same time he also reserved the regos SIN and SON, and the idea of the time was to park them outside on the flight line - in that order....
SIN was a PA31 which still exists.
SON was to be a Seneca.
Good to see the ole' SEX still active!
Cheers