Don Akim, 43, and Rosanna Beckett, 33.
They live in Lowestoft, Suffolk, with daughter Carmen.
Have always kept fit, but began bodybuilding only four months ago.
Won three trophies at Miami Pro World Champions in St Albans.
Couple met eight years ago in Norwich nightclub.
Don is a ship worker, Rosanna a dancer.
Engaged bodybuilders become first couple to BOTH win world championship honours at same event.