Pete Davidson and Ariana Grande. Picture: Instagram

Ariana Grande has adopted a pet pig.

The No Tears Left to Cry hitmaker - who is a vegan and animal rights activist - has sparked speculation that she and her fiance Pete Davidson have become the proud parents of a micro piglet after she uploaded a series of videos and photos of her and the comedian snuggling up to the miniature creature online.

The 25-year-old singer didn't give any more details about the piglet and, instead, let the pictures do the talking as the animal nuzzled into her neck on the bed.

But Ariana wasn't the only one to develop a strong bond with the pig as she later shared a sweet shot of the fluffy creature asleep on Pete's chest.

This is just the next step in the pair's whirlwind relationship as they are currently engaged to be married after the Saturday Night Live star popped the question just a few weeks after he officially started dating the God is a Woman hitmaker.

Despite finding love with Pete earlier this year, it's been a tough time for Ariana as she was left devastated two weeks ago when her ex-boyfriend Mac Miller - whom she dated for over two years - tragically died in a suspected overdose.

Alongside a short video of the rapper, Ariana wrote: "i adored you from the day i met you when i was nineteen and i always will," she wrote. "i can't believe you aren't here anymore. i really can't wrap my head around it. we talked about this. so many times. i'm so mad, i'm so sad i don't know what to do. you were my dearest friend. for so long. above anything else. i'm so sorry i couldn't fix or take your pain away. i really wanted to. the kindest, sweetest soul with demons he never deserved. i hope you're okay now. rest. (sic)"