It has captivated viewers with its eye-popping takes on sweaty exercise routines throughout the month of December.

And LOVE Magazine unveiled its most X-rated advent video yet on New Year's Day, directed by actress Lena Dunham and starring transgender model Hari Nef.

In a video which is too explicit to publish, a man is seen appearing to perform a very lewd sex act on the model, 25, as she writhes around in ecstasy in an extended scene set to sensual music.

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Steamy: LOVE Magazine unveiled its most X-rated advent video yet on New Year's Day, starring transgender model Hari Nef (above)

Raunchy: The x-rated video is directed by controversial Girls actress Lena Dunham, 31

Her pleasured expression then fades to disappointment before she pushes the hunk off her.

The video opens with Hari seen chatting with her assistants as she sits in a make-up chair clad in a floral semi sheer lace dress, while lotion is rubbed into her toned legs.

Her chestnut tresses are styled into soft waves while her striking features were enhanced with smoky shadow, fluttery lashes and a slick of red lipstick.

She says: 'Glam, glam, glam, I like having my body touched and beautified at the same time.

Wow: In video too rude to publish, a man is seen appearing to perform a very lewd sex act on the model, 25, as she writhes around in ecstasy in an extended scene set to sensual music

X-Rated: Her pleasured expression then fades to disappointment before she pushes the hunk off her

High life: The video opens with Hari seen chatting with her assistants as she sits in a make-up chair clad in a floral semi sheer lace dress, while lotion is rubbed into her toned legs

Glam: She says: 'Glam, glam, glam, I like having my body touched and beautified at the same time'

Polished: The star cracks a wry smile as she has her hair brushed by an assistant

Steamy: The video then cuts to a scantily-clad work-out session where Hari shows off her cleavage in a tiny bra paired with bondage style leggings as she bends over and stretches, with another beauty behind her

'I hate being this ugly but I love looking this good.'

The video then cuts to a scantily-clad work-out session where Hari shows off her cleavage in a tiny bra paired with bondage style leggings as she bends over and stretches, with another beauty behind her.

The star gushed about being part of the raunchy annual calendar, saying: 'Love Advent is as fun as it gets in fashion, and a testament to Katie Grand's vision. It's always glam, always sexy- but goofy too, and that's important!

Hari also paid tribute to the 31-year-old Girls star's directorial abilities, calling her a 'dream' to work with.

'Working on this year's Advent with Lena Dunham was a dream: we laughed from the beginning of shooting until the end- plus she let me improvise most of the voiceover!'

Scantily-clad: Hari stretched her lithe frame as she joined another toned beauty

Busty: The star flashed her cleavage as she planked with a stunning friend