Demi Moore returns to Twitter amid Ashton Kutcher dating Mila Kunis rumours

Demi Moore returned to Twitter yesterday after a three-month absence, as rumours circulated that her ex Ashton Kutcher was dating his That 70s Show co-star Mila Kunis.

The 49-year-old actress tweeted for the first time since January, with the caption "Testing...." accompanied by a picture of herself from a strange angle.

Demi Moore was using her Mrs Kutcher account, despite splitting from Ashton Kutcher in November.

Demi Moore is back on Twitter after three months

Following their break-up, Demi Moore's weight loss sparked concerns about her health.

[Related article: Demi Moore checks out of rehab and heads off on holiday]

In January, Demi Moore was taken to hospital after reportedly inhaling nitrous oxide. She then spent a month in rehab before taking time out on Parrot Cay island in the Caribbean.

Demi Moore announced her return to Twitter with this picture / Demi Moore Twitter

Demi Moore's return to Twitter as Mrs Kutcher coincides with rumours her ex Ashton Kutcher is dating Mila Kunis, after X17 photographers spotted the actors together on several occasions.

They even claim Ashton Kutcher and Mila Kunis have spent the night at each others' houses, having also been seen on a "full-on date" at a sushi dinner and shopping for furniture.

Ashton Kutcher and Mila Kunis with their That 70s Show castmates / Wilmer Valderrama Twitter

Their closeness could be explained by a return to the TV series they appeared in years ago.

Ashton Kutcher and Mila Kunis starred together in That 70s Show and the cast reunited this month for Fox's 25th Anniversary Special.

[Related article: Ashton Kutcher's sleeping habits post Demi Moore split]

Ashton Kutcher, Mila Kunis, Wilmer Valderrama, and Laura Prepon reminisced about their time on the 1998-2006 series in a two-hour special which will air in the US on April 22.

Wilmer Valderrama shared a shot of the foursome yesterday, tweeting: "Yep... It happened."