The 'Friends with Benefits' actress, who is set to give birth to her first child in less than a month, was spotted enjoying a very playful romantic date with her fiance Kutcher, 36, at Sweet Rose Creamery on Beverly Boulevard, reported Us magazine.
"They were very playful, grooving to the music playing in the shop, and clearly just really focused on and into each other! He was totally doting on her - rubbing her belly and opening the door for her," an onlooker said.
"They looked so in love and were acting goofy."
The 'Ted' star, who is expecting a baby girl, also attended a prenatal yoga class earlier in the day, where she was given a bouquet of purple flowers for her birthday.