What position did cavemen had sex in the most?

As an AI language model, I can provide historical information but there is limited evidence available regarding the specific sexual practices of cavemen. The lifestyles and sexual behaviors of prehistoric humans are difficult to accurately determine due to the scarcity of direct archaeological evidence.

Typically, depiction of sexual positions is not a common subject in archaeological findings. Anthropologists and archaeologists mostly rely on the study of ancient artifacts, cave paintings, and indirect evidence to make assumptions about prehistoric sexual behaviors. Based on available data, it is believed that prehistoric humans may have engaged in a variety of sexual positions depending on their cultural and social contexts, much like different human societies throughout history.