Aw bless! All is good with the world.
Thanks for your reply, Walter. My colleague doesn't look masculline, not very tall - not taller than me and I'm 5'7", slim. Voice not particularly deep. She looks a tomboyish sort of young woman, is actually older than she looks. She's nice, gave me lift home tonight as my car is having some work. (Nothing major I'm glad to say, took it in lunch time will collect in morning.)