Spider-Man co-stars Emma Stone and Andrew Garfield are reportedly planning to tie the knot.

According to US weekly, the couple have been dating since 2011, are talking marriage and starting a family.

"They want to marry and have a family," a source told the publication, "They're discussing it. Their schedules have been crazy, but they're madly in love."

The couple's relationship is believed to be in a very strong position and The Social Network star, in an interview with Teen Vogue last year, spoke about how he met and fell in love with his girlfriend.

"It was like I woke up when she came in. She was the last person to screen-test, and I was so bored of it by then that I was mucking about - I'd been pretending I was Tom Hanks or Seth Rogen," he said, "And then she came in, and it was like diving into white-water rapids and having no desire to hang on to the side."

"Throughout shooting, it was wild and exciting. I couldn't help but try to stay with her, keep pace with her, and not let her get away. Like an animal preying on a smaller animal, but a wily smaller animal," he added.

Stone, who played Gwen Stacy in The Amazing Spider-Man, has also previously talked about the couples instant attraction after meeting on the set of the film.

"I don't think you should try to explain the chemistry between two people — it's either there or it isn't," she said, "Initially, I was worried that 'The Amazing Spider-Man' was going to be all CGI and green screens. But then I got the script, which had these incredible scenes between Peter (Garfield) and Gwen with real emotion and heart."