Abstract: A mechanical device to scratch and stroke household pets upon demand is disclosed. A base fastenable on a vertical structural element mounts a petting arm for vertically adjustable and foldable positioning perpendicularly thereto. The petting arm is a compound member interconnected in its medial part by a motivating mechanism that moves the outer portion, carrying a hand-like petting element in a petting and stroking fashion. The motivating mechanism may be electrically activated and if so may include an electronic eye or position sensitive switch to sense pet position to institute petting upon pet demand. Vertical adjustment of the petting arm on the base allows use of the device with various sized animals.