Doncaster Rovers Belles were hit for six at FAWSL1 leaders Manchester City.
Lucy Bronze opened the scoring in the seventh minute before Jill Scott added a second three minutes later with a powerful volley.
Jane Ross headed in the third goal after 40 minutes, and four minutes later Jennifer Beattie netted a fourth with a thumping header from a corner.
There was still time for a fifth before half time as Kosovare Asllani grabbed her first City goal.
Toni Duggan scored the only goal of the second half on 74 minutes.
Newly-promoted Belles prop up the table having lost their first three games of the season.