Macaulay Culkin dotes on fiancée Brenda Song as they celebrate her 36th birthday with tropical resort getaway in Cabo San Lucas, Mexico

Macaulay Culkin and fiancée Brenda Song celebrated her 36th birthday in Cabo San Lucas, Mexico with a resort vacation at Nobu Hotel Los Cabos.

The 43-year-old actor on Wednesday shared highlights of the trip with a photo slideshow of the Dollface actress on his Instagram account following her March 27 birthday.

'So the lady and I went to @nobuloscabos for her birthday,' Culkin, who played Kevin McCallister in the 1990 mega-hit Home Alone and its 1992 sequel Home Alone 2: Lost in New York, captioned the post.

Donning a white polo shirt with the resort's name on the chest, Culkin said. 'On our first day we went to the gift shop and I found this shirt.'

He said that since he now 'looked like the staff' at the resort, he 'decided to spend' his 'four days there masquerading' as a poolside waiter, housekeeper, cabana boy room service attendant and bellhop.

Macaulay Culkin, 43, and fiancée Brenda Song celebrated her 36th birthday in Cabo San Lucas, Mexico at Nobu Hotel Los Cabos, where he served her a variety of ways

Donning a white polo shirt with the resort's name on the chest, Culkin said, 'On our first day we went to the gift shop and I found this shirt'

Macaulay, who was also in films such as The Good Son and My Girl, was seen in a series of photos serving Song, who he's been linked with nearly seven years, and shares two sons with.

In one image, Song took a selfie with Culkin in the background toting her suitcases. In another shot, Culkin was seen presenting his partner with a towel as she relaxed on a beach chair.

Culkin presented Song with a room service cart toting a bottle of Champagne in another pic, hamming it up in each pose.  

Macaulay, the older brother of Emmy-winning Succession star Kieran Culkin, expressed his gratitude with the resort for providing him and Song 'for the fun time and excellent stay.'

He added, 'And thanks for selling that shirt. It really made me feel like I belonged.'

Some Instagram users referenced Song's role as hotel heiress London Tipton on Disney's The Suite Life of Zack & Cody in relation to the luxury trip.

One user commented, 'Some might say you were treating her to the suite life,' while another said, 'You guys living the "suite life."'

Prior to his romance Song, Culkin was involved in relationships with actresses Mila Kunis and Rachel Miner, while Song was previously linked to Miley Cyrus's brother Trace Cyrus.

In one image, Song took a selfie with Culkin in the background toting her suitcases

In another shot, Culkin was seen presenting his partner with a towel as she relaxed on a beach chair 

The Home Alone alum was seen making a bed in another shot from the slideshow 

Culkin presented Song with a room service cart toting a bottle of Champagne 

Song, who voices the role of Akemi on the Netflix animated series Blue Eye Samurai, shared a slideshow of images from the excursion 

She relaxed in a cabana in the set of pictures, with Culkin presumably taking on the role of photographer as well 

Some Instagram users referenced Song's role as hotel heiress London Tipton on Disney's The Suite Life of Zack & Cody in relation to the luxury trip 

Song, who voices the role of Akemi on the Netflix animated series Blue Eye Samurai, shared a slideshow of images from the excursion on her page Wednesday.

She relaxed in a cabana as well as on the beach in the set of pictures, with Culkin presumably taking on the role of photographer as well.

'Cabo adventures,' she captioned the post. 'Who is she?!'