 Mullins was released by Reading upon the expiry of his contract.Mullins joined League Two club Kidderminster Harriers on loan for the remainder of 2004–05 on 17 December 2004, making his debut one day later in a 2–0 defeat away to Cheltenham Town.He scored his first goal for the club on 29 January 2005 in a 3–1 win away to Cambridge United.