Teen Mom Leah Messer stuns in plunging black dress with high slit as she packs on the PDA with boyfriend Jaylan Mobley

TEEN Mom star Leah Messer was all smiles as a she stunned in a plunging black dress for New Year’s Eve with her boyfriend Jaylan Mobley.

Fans have been praising the 29-year-old for how "happy and healthy" she’s been looking lately as her relationship with Jaylan continues to heat up.

Leah looked gorgeous in a long, black dress with a high slit up the leg, as well as with a deep, plunging neckline.

The sleeveless dress flowed at the bottom while being body-hugging throughout the rest of it, showing off the MTV star’s toned figure. 

As for Jaylan, he looked dapper in a colorful, patterned button-up with black pants and shiny, black dress shoes.

He shared a video of them counting down the seconds to the new year, getting ready to pop some bottles and toast to welcome 2022.

The two packed on the PDA when the clock struck midnight, Leah reaching up to give her boyfriend a big kiss in celebration.

Leah reshared her boyfriend’s Instagram video to her own story and added a fitting background song for it, one by Jaymes Young titled, Happiest Year.

The Teen Mom then posted a video all her on, which saw her celebrating not just with her boyfriend but with a couple of friends, as well.

They all smiled, laughed, and made funny faces as they tried to fit the whole group into the shot.

A photo of Leah and Jaylan was also posted, with the happy couple holding each other close and smiling big for the camera.

She captioned it, “Family, family, family.”

Last week, Leah, her boyfriend Jaylan, her three daughters, and their dog dressed up in adorable matching sweaters as they celebrated Christmas together.

They took a slew of photos with everyone together, as well as some romantic shots of just the couple, who went Instagram official in September.

The blended family sat in front their Christmas tree and the stockings hung over a fake fireplace.

Everyone appeared to be matching, though twins Aleeah and Ally wore different colors.

Leah's youngest daughter, Addy, also appeared to be wearing a slightly different sweater, but she was still very much dressed for Christmas.

Even the family dog got in on the action, sporting an adorable holiday-themed knit for the picture.

Leah captioned the post: "Merry Christmas!" with a tree and present emoji.

In another family photo, the couple posed in front of their stockings with Leah's daughters on either side of the couple.

The post included a photo of Leah and Jaylan alone as well, with the duo smiling as they stood in front of a fake fire.

The Teen Mom 2 star later shared more holiday photos, where she smiled cheerfully in a festive, red and white Christmas sweater.

Leah glowed as one of her daughters reached up to cup her cheeks.

She posed in front of a Christmas tree and showed off a fancy silver new watch.

Leah's long dark locks were worn in curls and the reality star wore a full face of makeup.

Fans flooded the comments as one wrote: "You look stunning and happy," as a second agreed, "So happy for you!"

A third posted: "Happy looks good on you."

Days before Christmas, the MTV star shared a video of herself, Jaylan and her daughters while celebrating the twins' birthday.

The clip, posted to Leah's Instagram Story, was set to a song featuring the lyrics: "You are my everything."

She panned the camera to her daughters first, each sitting in the back seats of the car.

Leah then got to Jaylan, who made a one and two with his fingers, signifying the fact that the girls were turning 12.

In the second of two videos, Leah added an animation that read: "Happy, Happier, Happiest Birthday."

After the videos, the mother of three posted a photo of herself, Jaylan and her daughters at a place called Locked & Coded.