The 35-year-old, who is currently promoting her parenting book The Baby Bible, candidly spoke about her relationship with the AFL football player on the Kyle And Jackie O show on Tuesday.
When asked how long it took for her beau to propose, Bec said with a laugh: 'It was about six years, and years of begging.'
'You don't love me?' the mother-of-four jokingly reenacted, before explaining she longed to be engaged 'because everyone else around us was getting engaged but not us.'
When Jackie O asked why Chris was so hesitant, Bec explained it was because the pair were only 20 when they started dating.
Kyle swiftly changed to topic to a rumour overheard by Intern Pete, who exclaimed: 'Chris is notoriously known for being quite well hung down stairs.'
Bec laughed and confirmed the speculation, saying: 'Chris would be happy we brought that up.'
'He's good at breeding, he's a sharp shooter,' she added.
The couple met in 2002 and wed in 2010. They share four children - son Oscar, 6, daughter Billie, 4, and twins Darcy and Tom, 1.