Taylor Swift and Calvin Harris
Taylor Swift and Scottish singer/DJ Calvin Harris are reportedly getting serious about their relationshipGetty Images

American singer/songwriter Taylor Swift and Scottish singer/DJ Calvin Harris are reportedly ready to take their relationship to the next level.

According to OK! Magazine, the 25-year-old Shake It Off singer and the 31-year-old DJ are making plans to move in together.

"Taylor trusts Clavin more than anyone she's ever met, and she's ready to take the next step," a source said. "Both of them have to travel all over for gigs, but they hate being apart. They practically live at each other's places whenever they have some downtime."

"She's never let a guy stay with her for any length of time," the insider added. "For this to happen so quickly says a lot."

Rumours that Rita Ora's former boyfriend and Swift are dating started in March, and the two were pictured shopping in Nashville, dressed similarly.

Later, the two were spotted at a Kenny Chesney concert, getting cosy in the audience.

The couple made their relationship public when Swift kissed Harris during the Billboard Music Awards 2015, held at the MGM Grand Arena in Las Vegas on 17 May.

It was previously revealed that Swift was single for a long time since splitting up with One Direction star Harry Styles.

The Red singer, who has a history of dating high-profile celebrities including Jake Gyllenhaal, Joe Jonas, Taylor Lautner, John Mayer, Zac Efron and Conor Kennedy, split with the 21-year-old singer last January, after dating for two months.