The Bachelor's Nikki has some strong words for the people who hurt her family.

Nikki Gogan has called out thieves who broke into her sister’s store in East Freemantle this week – labeling them “bad humans” in a message of support for her sister.

The former Bachelor contestant captioned an Instagram image from her “baby sis” Dani Gogan’s clothing store, Savvy Brands, saying it was broken into and that no one was hurt.

“It’s just so disappointing when I see how hard she works – I know all small business owners will relate to this – hats off to everyone hustling daily in their own small way,” she wrote.

“I wonder if the thieves really have any idea, yo thieves, stop being bad humans!”

A photo posted by Nikki Gogan (@nikki_gogan) on Feb 5, 2016 at 5:12pm PST

The 29-year-old used the opportunity to name-drop one of the brands the store carries, saying she wears it herself.

“It’s a shame these gorgeous @becandbridge numbers were taken ‘cos wearing this only for a minute brought me joy and now another woman won’t experience that joy as some silly billy decided to be well, a big silly billy this week!”

Nikki applauded her sister for her resilience in spite of the setback.

“You simply got on with it this week Dan, you chose to see all the positives and you continue to make me so so proud.”

We had too much fun yesterday, thank you for having us @ghmummau #mummracing ???????????????? Both wearing incredible millinery by our favourite @renykestel #renykestel Jewellery @linneys_jewellery Outfit @scanlantheodore Shoes @davidjonesstore Hair @jasminefowler_ MU @tahliajayde_mua Sister girl wearing @camillaandmarc & @fandhjewellery from @savvybrands

A photo posted by Nikki Gogan (@nikki_gogan) on Oct 29, 2016 at 6:58pm PDT

Nikki has become a bit of a brand ambassador for her sister’s clothing store, featuring heaving in Savvy Brands Instagram account.

Meanwhile, the real estate agent gets to live out every sister’s dream – with not just a wardrobe of clothes to borrow from, but an entire shop.

My baby sis @savvybrands was broken into this week and while nobody was hurt which is the main thing, it’s just so disappointing when I see how hard she works – I know all small business owners will relate to this – hats off to everyone hustling daily in their own small way ???????? I wonder if the thieves really have any idea, yo thieves, stop being bad humans! It’s a shame these gorgeous @becandbridge numbers were taken ‘cos wearing this only for a minute bought me joy and now another woman won’t experience that joy as some silly billy decided to be well, a big silly billy this week! ???? You simply got on with it this week Dan, you chose to see all the positives and you continue to make me so so proud @dani_gogan #loveya #proudbigsis #supportsmallbusiness #keephustling

A photo posted by Nikki Gogan (@nikki_gogan) on Nov 3, 2016 at 11:27pm PDT