Last weekend Kunis and Kutcher enjoyed a mini three day break in the coastal town of Carpinteria, just south of Santa Barbara.
The actors, who starred in TV sitcom That 70s Show together, were spotted popping out to buy sunflowers and fruit.
Kunis was dressed in tight sweat pants, a long sleeved t-shirt and heels and Kutcher wore a checked shirt over a white T-shirt.
A source said: “He was so in love with her for a while when they worked together. He thought she was a goddess, was always talking about how beautiful she is.
“But she was with Macaulay [Culkin] for a lot of that time and also just generally gave off a not interested vibe.”
Last week they were seen reportedly shopping for furniture and sharing an intimate sushi lunch.
But Kunis has denied claims that the pair are dating, with her spokesperson confirming that she is single.
The representative said: “They’ve been friend for years and they had dinner with a bunch of friends. They’re not dating.”
Fans hit Twitter to voice both their support and disgust.
@ntegrity4me Tweeted: “Cute Couple. She seems more classy than Rihanna.”
While @gibberishmess said: “Mila Kunis, I love you, but Ashton Kutcher? Really? Why are all my faves making decisions I don’t approve of?”