KRISTEN Stewart and Stella Maxwell have split after two years together.

The couple are said to have ended their relationship around one month ago, with Kristen prompting speculation that she has moved on already after she was pictured looking cosy with her stylist.

The Twilight actress was spotted with Sara Dinkin's arm affectionately around her waist - with Us Weekly reporting that Kristen and Stella had drifted apart in recent months.

An insider told the publication: "They stopped seeing eye to eye and were living very different lives."

It is also thought that their busy work schedules have kept the two stars apart, with Kristen busy working on the Charlie's Angels remake and Stella modelling for Victoria's Secret.

The former couple were last seen together at an Amsterdam airport in October.

The two stars were notoriously private about their relationship and did not speak about one another in the press during their time together.

Earlier today, Kristen was spotted walking in Los Angeles with Sara.

The pair took their dogs for a walk before getting green smoothies in Los Feliz.

At one point the two women were arm in arm, and in another snap Sara has her arm around the actress' waist.

Both were dressed down for the outing, with Kristen keeping her blonde, pixie haircut messy as she wore a yellow T-shirt and grey tracksuit bottoms.

Sara was wearing sports leggings, a white T-shirt, and a black bomber jacket.