Nara, 32, posted a series of black and white snaps on her Instagram account of the pair, including one in which she is seen lying topless on the star striker near his waist as he lies atop a table.
The picture appears to have gone down well well with Nara’s 5.1 million followers, racking up almost half a million ‘likes’ within the space of a few hours.
One admiring fan wrote: “I would like to be Mauro’s navel.”
The other snaps in the series show Nara and Icardi, 26, posing in a Rolls-Royce as she wears a figure-hugging dress and the football star is suited and booted.
The pair have been at the center of scandal at Inter Milan this season as Nara has attempted to negotiate a new deal for her husband.
Tensions have frequently frayed, and Icardi was stripped of the captaincy in February before being sidelined from the team – ostensibly with an injury – amid reports that his wife was a disruptive influence on the dressing room and his career.
Icardi has since returned to the Inter starting team, although rumors persist that he is set for a San Siro exit this summer with numerous big-name clubs across Europe said to be interested in securing his signature.
Icardi wed Nara in 2014, after they had reportedly started dating while Nara was still married to Icardi’s then Sampdoria teammate Maxi Lopez.
Nara has three sons from her previous relationship, and two daughters with the Argentine striker.
The former showgirl has become a TV personality in Italy – where she is often proclaimed the most powerful women in football in the country.
Italian journalist Giampiero Mughini recently risked a backlash by saying that Nara would “even scare Hitler” due to her strong personality.