Calvin Harris treated Taylor Swift to a gluten-free pizza

The 'Bad Blood' hitmaker relaxed with a glass of white wine, while her DJ beau stuck to water before picking up the bill.

A source told E! Online: "The place had about 15 tables, so it was very small and intimate. They ordered a salad and then two gluten-free pizzas. Before the food came they were holding hands and they were really engaged with each other. You can tell they were totally a couple and so into one another. They laughed and were talking throughout the night. When the pizza came, Taylor served Calvin a slice of pizza on his plate then gave herself one.

"She took his hand towards the end and put it close to her heart. It was a sincere gesture."

The25-year-old blonde beauty is thought to have been dating the 'Under Control' hitmaker since March and the pair haven't been shy when it comes to putting on romantic displays.

A close friend of the music producer believes their relationship is going so well as Calvin, 31, sees the Grammy Award-winner as his "equal".

They said: "Women throw themselves at him. He can never tell if they are really interested in him as a person or if the attention is just because of his fame and fortune. But when he met Taylor, it was different. For the first time in a long time here was someone who was his equal.

"They have a mutual respect for one another. They understand one another. They are on the same level and that's been a good starting point for both of them."