January 5, 2023 | 2:58pm

The household that glosses together, stays together?

In Prince Harry’s forthcoming memoir, “Spare,” retired Tuesday, the Duke of Sussex recalls an “awkward moment” betwixt his wife, Meghan Markle, and his sister-in-law, Kate Middleton.

The uncomfortable brushwood allegedly went down earlier the Sussexes’ and the Waleses’ Royal Foundation Forum quality successful 2018, erstwhile Harry’s caller woman asked to get Kate’s articulator gloss erstwhile she forgot hers — an “American thing,” arsenic the Duke of Sussex called it.

“Kate, taken aback, went into her handbag and reluctantly pulled retired a tiny tube,” Harry wrote. “Meg squeezed immoderate onto her digit and applied it to her lips. Kate grimaced.”

Perhaps Middleton passed Markle her conduit of Clarins Natural Lip Perfector ($28), a favourite merchandise she was spotted swiping connected astatine Wimbledon successful 2019.

First Annual Royal Foundation Forum appearanceAt the Royal Foundation Forum appearance, an “awkward moment” occurred.Getty Images

The Duke went connected to accidental that the 4 “should’ve been capable to laughter about” the moment, but the property “sensed” it was “something bigger.”

“I deliberation it had Kate connected borderline portion putting her and everyone other connected announcement that she was present going to beryllium compared to, and forced to vie with, Meg,” Harry admitted. 

In the shocking memoir, Prince Harry reveals helium looked guardant to creating a almighty “Fab Four” adjacent earlier helium met the “Suits” star, and often discussed his hopes with his brother. 

“I besides said I couldn’t hold for them to conscionable her, that I looked guardant to the 4 of america spending tons of clip together, and I confessed, for the umpteenth time, that this had agelong been my imagination – to articulation them with an adjacent partner,” Harry wrote. 

“To go a foursome. I’d said this to Willy truthful galore times, and he’d ever replied: ‘It mightiness not happen, Harold! And you’ve got to beryllium OK with that.’ Well, present I felt that it was going to hap and I told him truthful — but helium inactive said to dilatory down. She’s an American histrion aft all, Harold. Anything mightiness happen.” 

prince harry The royal opened up astir wanting to conscionable an adjacent partner. Getty Images

In the fiery book, Prince Harry drops explosive details not lone astir his member and sister-in-law, but besides astir King Charles — whom helium claims didn’t hug him aft Princess Diana’s death — and Camilla Parker Bowles, who allegedly converted his bedroom astatine Clarence House into her ain dressing room.

He besides shared candid details astir his ain enactment life.