Vehicle seat and vehicle seat system for a motor vehicle

A vehicle seat (10) for a motor vehicle, having a backrest (12), a height-adjustable headrest (14) and a seatbelt guide (22) integrated in the vehicle seat (10) for a seatbelt (18), wherein the height-adjustable headrest (14) is coupled to a headrest section (16) of the backrest (12), the headrest (14) having a first surface configured to receive a vehicle occupant's head and an opposite second surface directly facing the headrest section (16) such that the headrest (14) overlies the headrest section (16) in a direction that is transverse to a height-adjusting direction of the headrest (14), the headrest (14) moving along the headrest section (16) in the height-adjusting direction during a height-adjustment of the headrest (14), and wherein the headrest (14) is mechanically coupled to a seatbelt guide adjusting mechanism (36), which mechanically adjusts the seatbelt guide (22) when a height of the headrest (14) is adjusted.