I'm not sure which specific 'first male sex true story' you are referring to. There could be many stories that might be related to the first male sexual experiences in different contexts, like in a scientific study about the evolution of sexual behavior in male primates, or in a cultural account of puberty and sexual awakening in a particular society.
The term 'first male sex true story' is very broad. It could potentially be a personal account of someone's first sexual encounter as a male. However, without more context, it's difficult to provide a detailed story. It might also be related to historical or anthropological research on male sexuality, but again, more details are needed.