Perry Northeast’s Pompey Ladies slipped to a 3-2 defeat to Brighton in the FA Premier League southern division at Privett Park.
The Blues fell behind when Brighton scored after seven minutes.
Kate Natkiel was on the mark for the visitors with a good low shot.
Nigerian international striker Ini Umotong delivered a cracking response for Pompey with a powerful finish of her own.
She struck on 10 minutes to make it 1-1.
On 57 minutes league-leaders Brighton, who have been in superb form this season, took the lead again.
Lucy Somes was in the right place to touch the ball home.
This time Brighton were able to go on and add to their advantage.
Amy Taylor fired home on 78 minutes.
Pompey’s Emma Sherwood pulled a goal back in injury time after coming on for her debut.
But Brighton took the victory to extend their lead to four points at the top of the table.
Pompey are fourth - seven points back but with one game in hand.