Denise, 39, channeled her inner Pamela Anderson to launch the first ever Sainsbury's Sport Relief Games in a 'Baywatch' style red swimsuit.
The mum-of-one struck a pose in front of an Olympic pool with a bike and a pair of trainers over her shoulder (as you do) for the snap.
Denise is encouraging people to take part in three sporting challenges for Sport Relief.
These will include running, swimming and cycling all over one weekend in March next year.
The TV and radio presenter, said: 'I love Sport Relief and even took part in a mile event when I was pregnant.
'This year I'm going to do something more challenging and swim 5km.'
She added: 'My three year old, Betsy, has just started having swimming lessons so I thought it was time for mummy to learn properly too as I've never been very confident in the water, so the Sport Relief swim really will be a challenge for me.'