Katharine McPhee Shares Flirty Exchange with Husband David Foster on IG

Katherine McPhee posted steamy undergarment photo text she sent to her husband, David Foster. The star increased the heat on social media with the image that showed David's equally teasing reply.

Katharine McPhee may be "an underwear model now." The 37-year-old 2006 "American Idol" star got social media heated up with a spicy photo she sent to her husband and his reply.

The screenshot posted on her Instagram story got fans gushing over her marriage of two years which evidently still has the spark. The post proved that Foster was impressed with his wife's steamy image.

KATHARINE STEAMY SOCIAL MEDIA UPDATE

McPhee showed off her hot mom look in blue underwear paired with a white T-shirt. She appeared carefree as she knelt on a bed in the image she captioned:

"Texts with the husband @davidfoster."

Foster appreciated his wife's look, replying with a "Vava vavA-voom." He didn't stop there as he further complimented his radiant-looking wife by joked about her "busy stripping!!" before noting that she looked "amazing!!! Wow!!!"

The couple's romantic display has become a regular event amongst fans since they tied the knot in 2019. During an interview, the Canadian musician revealed he was captivated by Foster's personality.

He explained that he wasn't only attracted to his wife's beauty but her inner character. He also noted that after being friends for 14 years, they bonded naturally.

[McPhee] explained that she had known [Foster] since she was 21 years old and he has always been "good" to her.

INSIDE KATHARINE AND DAVID'S ROMANCE

Rumors of McPhee and Foster's love affair began in May 2017. Erin, David's daughter, confirmed fans' speculations when she posted a photo of the couple on social media and noted that she was happy to have a new step-parent.

The singer and songwriter showed up with Foster for the red carpet event at the Grammy Museum Gala on September 19, 2017. Shortly after, the two were seen together for his 68th birthday ceremony in Los Angeles.

In McPhee's cover story for Health in 2017, she reflected on her relationship with the 16-time Grammy Award winner. She explained she had known the record producer since she was 21 years old and he has always been "good" to her.

THEIR EXPANDED FAMILY

McPhee, 37, and Foster expanded their family after welcoming son Rennie. Foster is also dad to Allison, 51, Amy, 48, Sara, 40, Erin, 39, and 35-year-old Jordan from previous relationships.

The star gave fans a glimpse at her little boy in never-before-seen snaps she recently posted on social media. The happy mom's photo featured her and her son spending time at her husband's homeland.

A photo showed the star mom and her son at a far distance as she stood waving her hands in a garden filled with flowers. Little Rennie was also spotted in a black and white baseball hat.