Lauren Conrad has adopted a new puppy.

The 28-year-old fashion designer, who already has rescue dogs Chloe and Fitz, took to her Instagram account on Saturday to share an adorable photograph of her new four-legged friend.

She accompanied the cute snap -- which shows the fluffy canine gazing into the camera lens -- with the caption: "Newest member of the Conrad clan stole me heart."

However, Conrad, who regularly posts pictures of her pets on her social media sites, is yet to announce the name of the chocolate-coloured pup.

Meanwhile, despite being busy training up her family of dogs, the former 'The Hills' star is currently planning her and her fiance William Tell's wedding -- although she admits she's not in a rush to tie the knot.

She said previously: "You have the rest of your life to be married.

"Enjoy falling in love. When girls get caught up in the timeline, it becomes more about the wedding than the marriage. You should be with someone with whom you could elope this weekend and be happy."

Conrad also admitted she was completely caught off guard when student Tell, 33, proposed to her with the perfect ring in October after less than two years of dating.

She said: "I had no idea it was coming. I thought he would wait until he finished law school."