Mikaela Lauren was unable to repeat her stunt from earlier this week, as world champion Cecilia Braekhus was ready with a piece of cloth to cover her mouth.
Both made weight for their scheduled rematch tomorrow night. Braekhus weighed in at 65.8 kg (145.06-pounds), while Lauren tapped in to 66.1 kg (145.7-pounds). Braekhus had previously dominated Laruen in their first meeting.
Lauren will be looking to land a string of punches on Braekhus when they meet on Saturday night.
But she has fired an early shot by landing a kiss on the champion when they met at Monday's press conference.
The two women stared down ahead of their world welterweight title contest in Stokke, Norway, with Lauren breaking the gaze to kiss her opponent on the lips as the mind games continued.
It came much to the surprise of Braekhus, who gave Lauren a quick slap on the face before she quickly moved away. She was, however, able to see the funny side as she struggled to control her laughter.
'I haven't got that in a while,' Braekhus joked, as she shouted across the room.
It's not the first time Lauren, 42, has tried such a stunt, having done so when she faced Christina Hammer in 2013.
This weekend she challenges for Braekhus's WBA, WBC, IBF, IBO and WBO titles and will be hoping her mind games can help her to victory over a women who possesses a 31-0 professional record.
Lauren is 29-4 from here 33 contests, with the pair having met before when Braekhus knocked Lauren out during their bout in Rostok, Germany in 2010.
It's not the first time such an act has been tried ahead of a big fight, with Gary 'Spike' O'Sullivan attempting to plant a kiss on Chris Eubank Jnr ahead of their 2015 contest.
That kiss provoked a different reaction, with a scrap breaking out between both camps as Eubank reacted badly to O'Sullivan's gesture.