The 12 Years a Slave actor has been dating the rising Swedish star since last year (14) and she has now moved into his New York apartment, according to Britain's The Sun newspaper.

A source tells the publication, "They've been talking about the big move recently and although it's early days, this is the most serious about a girl Michael has been for ages... They now always have his place to crash whenever one or the other is in New York."

The couple began dating after playing husband and wife in forthcoming movie The Light Between Oceans.

Fassbender has previously been linked to his former Shame co-star Nicole Beharie, Zoe Kravitz and supermodel Naomi Campbell, while Vikander reportedly dated Alexander Skarsgard.