Dear Chums,
Minka has always stated in her bios, consistently, since 1991 that she started out as a 34D. Friends had remarked that she was huge for a tennis player... and as she couldn't get a green card as a tennis pro, they suggested she consider feature model work based on her bust size. So since bigger = more money, she kept going bigger.
But you asked about original size and she has consistently stated 34D. Consistency in any story over the years always indicates some degree of truthfulness.
And I'll take Minka's word for it.
Best regards,
BOne...