has strongly responded to claims she's underweight
, after being snapped earlier looking thin
on a beach in St Barts with boyfriend
Gregorio Marsiaj, 31.
The former Wonderbra
model, 36, insists she isn't on a diet
, and is naturally thin, claiming her hectic lifestyle has caused her to lose weight. She said:
'I am a busy, working mother, I have a hectic life rushing round looking after my toddler combined with a