Wild interracial fucking in the professor's office (for scientific purposes)

The visiting professor decided to track what was happening in the brain of an excited man (there must be a joke about a monkey with plates). So, he found a volunteer, glued sensors to his head, called the phytony and ordered him to shake his buns. Unfortunately, the experiment was a failure: either the scientist made a mistake in his calculations, or the laboratory assistants Obebosin and Khuesosin again got something wrong. Nigga got so excited that the device burned out and the sensors went to hell. However, the dude didn’t notice this: he was busy fucking the fit girl in the ass.