A family affair! Bristol Palin shares fun throwback snaps of parents Sarah and Todd to mark their 28th anniversary, after spending a day at the state fair with husband Dakota and her sisters

• e-mail

Bristol Palin and her husband Dakota Meyer spent the weekend riding amusement park rides and watching The Band Perry perform at the Alaska State Fair before wishing her parents a happy 28th anniversary the next day. 

The 25-year-old mom took to Instagram on Sunday afternoon to share a photo of herself posed with Dakota, her younger sister Willow, 22, and other family members and friends at the band's performance the day before.

'The Band Perry & some of our fam [sic],' she captioned the image, which sees them enjoying cups of beer at the outdoor concert.

Scroll down for video 

Having a blast: Bristol Palin, her husband Dakota, and her sister Willow watched The Band Perry perform at the Alaska State Fair on Saturday 

Mini-me: The 25-year-old mom was surprised to see that she and her sister Piper, 15 ,were wearing nearly identical outfits when they ran into each other at the fair 

However, Bristol and Willow weren't the only Palins at the event. The mother-of-two made sure to snap a photo with her 15-year-old sister Piper when she ran into the teen at the fair that was held in Palmer, Alaska. 

Though she may have known Piper was going to be at the event, Bristol was surprised to see that they were dressed like twins in matching camouflage jackets and black T-shirts.

'Ran into my sister at the fair wearing the same outfit as me #mini #cuteness [sic],' she wrote when posting the image.

'Goals': Bristol shared this photo collage of her parents Sarah and Todd Palin throughout the years to celebrate their 28th anniversary on Monday 

And while Bristol was hanging out with Piper, Willow snapped a photo with their little brother Trig, eight, as they rode a ride

Trig and Bristol's seven-year-old son Tripp just started the second grade together, but it appears the mom left him and her eight-month-old daughter at home as she and Dakota enjoyed a date night. 

The 28-year-old Medal of Honor winner took to Instagram on Sunday to post a photo of Bristol looking into his eyes while on a ride. 

Dakota must have been feeling particularly romantic when she sharing the image, writing: 'You're not just my wife. You're my best friend.' 

Say cheese! Willow, 22, snapped a photo with their eight-year-old brother Trig when they rode a ride at the fair together 

Look of love: 'You're not just my wife. You're my best friend,' Dakota wrote when he share this image of Bristol looking at him 

On Monday, Bristol returned to Instagram to share a photo collage of her parents Sarah and Todd Palin through the years in honor of their wedding anniversary. 

'Happy 28th Anniversary to my parents! #goals #highschoolsweethearts,' she wrote. 

A couple of weeks ago, Bristol celebrated a major milestone for her son Tripp and her brother Trig as the proud mom joined the boys on their first day of second grade.

The mom took to Instagram that Monday to  share a sweet photo of herself posed with Tripp and Trig, who has Down syndrome, in the parking lot of their elementary school in Wasilla, Alaska.

Proud mom and big sister: Bristol celebrated her seven-year-old son Tripp and her brother Trig's first day of second grade earlier this month 

Baby love: After dropping her son off at school, Bristol snapped this adorable picture of her eight-month-old daughter Sailor Grace

'First day of 2nd grade for my babes!! and first time I've seen Tripp in jeans all summer #hecould {sic],' she captioned the image, which sees her squatting down to pose with the boys. 

In the image, Tripp has his arm flung around Trig's shoulder as they smile for the camera. Bristol's only child with her ex-fiance Levi Johnston is holding an extra pair of black sneakers in his hand, while Trig is carrying a mini satchel.

And, of course, both boys are proudly carrying backpacks for their first day of school.

Later that day, Bristol shared an adorable photo of Sailor Grace decked out in a a pink ensemble while smiling for the camera, writing: '& my chunkalicious.'