The attack on the model comes six days after the Ukranian journalist carried out a similar prank on Gigi Hadid, grabbing her from behind and lifting her clear off her feet as she sputtered in outrage.
Pictures and camera footage of the prank show the 35-year-old star arrive at L'Avenue restaurant when Sediuk, 27, came out of nowhere, only to squat behind her and pucker up at her buxom derriere, clearly visible in the sheer skirt she had on.
Fortunately, Kim's longtime bodyguard, Pascal Duvier, was on hand and quickly tackled Sediuk to the ground.
Shortly after the incident, Kim tweeted, "My security @PascalDuvier is a G."
Sediuk, apart from taking on seemingly aggressive pranks, has become renowned for accosting celebrities in the most awkward ways at movie premieres and awards ceremonies.
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This is also not the first time Kim has encountered this aggressor. In September 2014, Seduik almost had the mother-of-two sprawled on the floor as she attended the Paris Fashion Week with her husband, Kanye West and mum, Kris Jenner.
Seduik's aggressive streak led to his ban from all Hollywood events.