Actress Mila Kunis. who is set to give birth to her first child in "less than a month", celebrated her 31st birthday recently at an ice-cream parlour with fiance Ashton Kutcher.

After attending a prenatal yoga class to help her keep fit, Kunis headed out to satiate her ice-cream craving on her special day Aug 13.

The "Friends with Benefits" actress was spotted enjoying a "very playful" romantic date here.

"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. They looked so in love and were acting goofy," UsMagazine.com quoted a source as saying.

Kunis is expecting a daughter.