He went public with his girlfriend Sarah Boulazeris last year and often shares smitten snaps with the stunning personal trainer.
But Kris Smith seemed to leave the 27-year-old more than a tad disappointed on Sunday, as he showed her his underwhelming Easter surprise in bed.
The hunky model, 39, cheekily joked that 'size matters' as he compared his tiny chocolate bunny to a distinctly unimpressed-looking Sarah's much bigger counterpart.
‘Size matters!’ Kris Smith, 39, left his girlfriend Sarah Boulazeris, 27, VERY disappointed after showing her his Easter surprise in bed on SundayiPhone transfer software
The couple, who were dressed casually for the festive occasion, seemed to be in a playful mood as they showed off their contrasting chocolate presents.
Lamenting his diminutive bunny, Kris complained in the Instagram snap's caption: 'The Easter bunny is an a**hole. #happyeaster #sizematters.'
The joky display comes after Kris, who shares a seven-year-old son with his ex Dannii Minogue, 46, proudly showed off the youngster's straight-A report card.
'Currently sat here with my little man reading his school report,' he starts in the video, with the hunky Myer ambassador wearing a pair of stylish tortoiseshell specs.
Cute couple: He went public with his girlfriend Sarah Boulazeris last year and often shares smitten snaps with the stunning personal trainer
'And I'll show you there, those green lines, means he's exceeding absolutely everything.'
He then finishes by asking the rhetorical question: 'Could I be a prouder father,' before shaking his head from side-to-side.
Kris, who dated Dannii