Ms Black said she only told her 80-year-old mum this year, but was relieved at the response.
She told News Corp the woman across the road was working constantly, making Ms Black believe there was serious money in the profession.
Aubrey Black was working as a photographer and graphic designer with her daughter when a shoot with a group of escorts sparked her desire for a career change, she told.
She said she would help in the school cafe and do design things for the school when her daughter was younger, but male students 'got silly', so she did not return.
She says her daughter, 26, and her son, now 17, both accept what she does for a living, as does her religious mother.
She said her phone was ringing off the hook just two months later.