Adjustable seat cushion assembly

An adjustable seat cushion assembly comprising:

• a first seat element having a first cushion part;
• a second seat element movable relative to the first seat element between a retracted position and an extended position, the second seat element having a second cushion part;
• a cover piece of a cushion cover that straddles a variable gap between the first and second cushion parts;
• and
• a pulling mechanism configured to draw the cover piece into the variable gap when the second seat element is moved from the extended position to the retracted position, the pulling mechanism includes a traction link coupled to cover piece in an area between the first and second cushion parts and joined with the second seat element and a link rod extending in a seat width direction of the cover piece, coupled to the fraction link and engaging a guide slot on an end of the link rod.