A row over a lack of cigarettes led to a man hitting his girlfriend on the head.
Mark Murphy, a 30-year-old funfair worker, of The Crescent, South Shore, pleaded guilty to assault and causing damage.
Adrian Hollamby, prosecuting, said the couple went on a night out on December 8 and there was an argument over the lack of cigarettes when they returned home.
Murphy’s girlfriend went to her parents home a couple of doors away.
Murphy followed, punching her twice in the head and damaging some glass in a door.
Tony O’Brien, defending, told magistrates Murphy denied punching his girlfriend, but admitted slapping her.
He was bailed for a pre-sentence report and will be sentenced at a later date by Blackpool magistrates.