Hot on the heels of her rumoured engagement to Ashton Kutcher, rock-wearing Mila Kunis has now been spotted attending a prenatal yoga class in Hollywood – hence the boom in baby-based headlines relating to these lovebirds. While the couple remains tight-lipped about potential offspring, Mila, 30, has revealed the secret to their relationship’s success. Rather than clichés like red roses, it involves plain white T-shirts. “[Ash and I] have a thing called white T-shirt night when you wear jeans and a white T-shirt and go on a date. Nothing fancy, it's just something that you love to do – whether that's bowling or dinner or going to a cheese shop... I think that's just the best thing, and sometimes it's just nice to stay home.” Yes, we’d like to stay home with Ashton, too.