Calvin Harris asks Taylor Swift not to write `revenge` songs about him if they split-up

London: Calvin Harris has reportedly banned Taylor Swift from writing songs about him if they break up as he thinks it will "demean" her.

A source said that it was the white elephant in the room, but it's been on his mind, so he confronted her about it last week, telling her he doesn't want her to do that to him, the Mirror reported.

The insider added Harris doesn't want to join the ranks of the 'Shake It Off' hitmaker's refugee boyfriends Harry Styles, John Mayer and Jake Gyllenhaal, who've been humiliated by one of her revenge songs .

Despite not wanting a song written about him, the 31-year-old DJ is supposedly desperate to make music with the 25-year-old star.