Late reply but anyway, if you haven't already secured a purchase the fanatic fly will be fine for you and partner. My wife is learning she is slightly heavier at 70kgs she has the Fanatic Diamond which has the same deminsions as the Fly, this will be perfect for both of you especially when you both start to progress. You will also appreciate the less width and length when you start to carry/ transport your board. I have a 8"3 x 32 Hokua, 10"6 x 30 Nalu and 10" x 29" NSP. Surfing for 30+ years and paddling for 4 years. Occasionally I will jump on the Diamond and find the Diamond really fun and easy to surf.
hope this helps...
stay stoked!