Don Jr and Kimberly Guilfoyle are already planning to tie the knot. Multiple sources said that the former U.S. President's son secretly proposed in December 2020.

In its January 24, 2022 issue, Globe reported that the engagement secret first made headlines last December 31. This came after the former Fox News host posted a tribute on Instagram to mark her partner's birthday.

She accompanied it with three photos, wherein one of them features her wearing a "massive diamond bauble." Apart from the suspected engagement ring, the caption appears to be a giveaway that she accepted the alleged proposal.

Guilfoyle wrote that she "can't wait" to spend the rest of their lives together. She, also, described Trump Jr as "strong, smart, courageous, (and) funny."

An insider told People that the news personality has been wearing her engagement band, adding that she and Don Jr are "very excited about blending their families." When asked for a comment, though, no word has yet to surface to confirm the reports.

Despite the claims of other sources, it remains unclear when the pair got engaged. It is, also, claimed that the two personalities have yet to set a date for their wedding.

Don Jr and Kimberly Guilfoyle go way back more than 15 years ago. They shared a close friendship, alongside their respective then-spouses.

The relationship only began in 2018, months after Vanessa Trump filed for divorce from the former POTUS's son. Insider recalled that Trump Jr and Guilfoyle made their romantic tie "Instagram official" in June 2018, and have since attended engagements as a couple.

In late 2019, the two political figures were asked about marriage and when they intend to tie the knot. They seemingly redirected the response, saying that their focus was on getting the then-U.S. President, Donald Trump, reelected.

Meanwhile, the Daily Mail reported that Don Jr and Kimberly Guilfoyle have settled into life in Florida in the past year. They relocated from New York, and are now reportedly planning to move to Jupiter, Florida in a new home.

As noted, the pair just offloaded their Manhattan and Hamptons properties for $4.4 million and $8.1 million, respectively. While they shared the latter estate, the former was the former Fox News host's apartment.

Between Trump Jr and Guilfoyle, they have a total of six children. Trump's son shares five children with former wife, Vanessa Trump. As for the television personality, she had a child with ex-husband Eric Villency.