Tallulah Willis poses in a floral bikini with boyfriend Dillon Buss

Tallulah Willis took to Instagram on Wednesday to show off her pinup bikini body for her 330K followers.

The daughter of Demi Moore and Bruce Willis wore a red and black floral two piece that proved she is staying very slender these days.

The fashion designer stuck out her tongue and then also posed with her boyfriend Dillon Buss by her side as she wrote, ‘Yr favorite aunt and uncle.’

Demi’s girl: Tallulah Willis took to Instagram on Wednesday to show off her pinup bikini body for her 330K followers

Tallulah had her hair pulled back with a headband as she went light on the makeup.

The sister of Rumer Willis flaunted a deep summer tan as she flashed long, manicured nails.

The star was on the grounds of her mother Demi’s estate in Idaho which is surrounded by a lush lawn and a steam with mature trees everywhere.

Le look: The daughter of Demi Moore and Bruce Willis wore a red and black floral two piece that proved she is staying very slender these days. She also posed with her boyfriend Dillon Buss by her side as she wrote, 'Yr favorite aunt and uncle'

Le look: The daughter of Demi Moore and Bruce Willis wore a red and black floral two piece that proved she is staying very slender these days. She also posed with her boyfriend Dillon Buss by her side as she wrote, ‘Yr favorite aunt and uncle’

In a new Instagram video, the star was in pink sweats as she was seen playing with six small dogs on the lawn.

This comes after she said on Monday she had was ready to ‘succumb to her spiral’ on before film director Dillon surprised her ‘with a picnic basket’ of her ‘favourite snacks and drinkies’. 

Tallulah, 26, explained how she had body dysmorphia, obsessive compulsive disorder and disassociation outbursts ‘bubblin about’ and said to her partner that she needed ‘some alone time’. 

'I needed some alone time': On Monday she shared this image with the note: 'Was having a hideous day - bdd/ocd/disassociation flare ups bubblin about. Wanted to curl under the sheets and succumb to my spiral'

‘I needed some alone time’: On Monday she shared this image with the note: ‘Was having a hideous day – bdd/ocd/disassociation flare ups bubblin about. Wanted to curl under the sheets and succumb to my spiral’

After giving his other-half some space, Dillon, a film director and photographer, returned with a selection of her favourite treats for an al fresco dinner in a wicker basket. 

Los Angeles-born Tallulah looked radiant as she posed on a picnic blanket in coral halterneck bikini showcasing her long limbs and sun-kissed complexion.  

Tallulah tucked her cropped dark locks behind her ears and smiled for the camera in 90s-style shades surrounded by her two dogs, Cowboy and Tooch. 

The entrepreneur appeared relaxed as she leaned back on the blankets under the shade of a tree with an idyllic stream flowing past.  

Loves: The youngest daughter of Demi Moore and Bruce Willis told how she was ready to 'succumb to her spiral' - before film director Dillon surprised her 'with a picnic basket'

Loves: The youngest daughter of Demi Moore and Bruce Willis told how she was ready to ‘succumb to her spiral’ – before film director Dillon surprised her ‘with a picnic basket’

'Hideous day': Tallulah, 26, explained how she had body dysmorphia, obsessive compulsive disorder and disassociation outbursts 'bubblin about'

‘Hideous day’: Tallulah, 26, explained how she had body dysmorphia, obsessive compulsive disorder and disassociation outbursts ‘bubblin about’

Captioning the picture, Tallulah wrote: ‘Was having a hideous day – bdd/ocd/disassociation flare ups bubblin about. 

‘Wanted to curl under the sheets and succumb to my spiral. I texted my partner I was having an off day and needed some alone time, he told me he understood and was here to hold whatever space he could. 

‘Forty minutes later, the door creaked open and there he was with a picnic basket carrying my favorite snacks and drinkies.’ 

‘We sat outside and talked about our first kisses. I felt today, the word ‘grateful’ become unspooled and reframed.’ 

Thankful: Tallulah later shared a snap of Dillon to her Instagram story which saw him donning a navy baseball cap with a T-shirt and shorts for the spontaneous picnic

Thankful: Tallulah later shared a snap of Dillon to her Instagram story which saw him donning a navy baseball cap with a T-shirt and shorts for the spontaneous picnic

She ended the emotional post: ‘I knew what it was, I never knew it could be felt to this magnitude. 

‘Please do not accept less than what you know you deserve. Ever. I promise it’s worth the wait.’ 

Dillon also shared a heartfelt tribute to his girlfriend on Instagram and described how his ‘love grows deeper and deeper’ for her each day. 

Alongside a picture of the couple in a bed of roses and a snap of Tallulah cradling Cowboy, he wrote: ‘My appreciation and love grows deeper and deeper with you everyday. 

Candid: Dillon also posted a picture of his love stroking Cowboy on the picnic blanket before zooming in on the tiny pup's face

Candid: Dillon also posted a picture of his love stroking Cowboy on the picnic blanket before zooming in on the tiny pup’s face

Sweet: Dillon shared a heartfelt tribute to his girlfriend on Instagram and described how his 'love grows deeper and deeper' for her each day

Sweet: Dillon shared a heartfelt tribute to his girlfriend on Instagram and described how his ‘love grows deeper and deeper’ for her each day

‘To my Lu, the greatest dog mother in the world, you have the most ginormous heart.’   

Tallulah later shared a snap of Dillon to her Instagram story which saw him donning a navy baseball cap with a T-shirt and shorts for the spontaneous picnic.  

Dillon also posted a picture of his love stroking Cowboy on the picnic blanket before zooming in on the tiny pup’s face. 

It comes after Tallulah recently launched her new brand Wyllis, with pal Rachael Finley.  The new clothing brand Wyllis is unique as it features artwork from Tallulah herself in a bid to raise awareness around mental health.