A humanoid robot was allegedly used to sexually assault a teenage girl in Germany — with the sick harassment livestreamed on social media, according to authorities.

The red and gold remote-controlled robot grabbed the 16-year-old’s buttocks and “made thrusting motions against her,” police in Cologne said in a statement.

Video circulating on TikTok shows the bot, painted red and gold to resemble Marvel’s Iron Man, assaulting the girl outside a restaurant in the west German city on Sunday.

The robot’s 16-year-old owner and his 19-year-old companion are alleged to have filmed the assault and livestreamed it on social media while providing repulsive commentary, according to police.

The alleged victim was with friends outside a fast food restaurant in Cologne when the four-foot-high robot approached her just before midnight.

She called the police, and cops found the robot in the trunk of a Volkswagen shortly afterward.

Cops shared a picture of the robot, wearing a white cut-off T-shirt, black basketball shorts, a fake mustache and a gold chain, lying on the ground after being seized by the police.

Officers confiscated the robot and two cellphones belonging to the suspects, according to the police.

Authorities are investigating who was controlling the robot at the time.