Taking to Instagram, Stewart posted an adorable photo of him and his two nieces in full wedding guest attire, ahead of his sister's wedding.
"Family time with Scout & Grace...Flower girls at my sisters wedding!
🦄🌈", James captioned the post.
On November 30th last year, James proposed to girlfriend and fellow actress, Sarah Roberts, at their favourite restaurant.
Speaking exclusively to New Idea, James recalled: “It was the last day of spring.
“Some good friends said, ‘keep it simple’. So, I was sitting in this Italian restaurant and I was sweating, but I kept it simple – which made it more real.”
WATCH! Sarah Roberts opens up about engagement to James Stewart!