The tutorial you're likely referring to provides guidance on how to engage in pegging with a focus on prostate penetration. Prostate play, also known as prostate massage or prostate stimulation, involves stimulating the prostate gland, which can lead to intense pleasure and potentially powerful orgasms.
Here are some additional tips and tricks to keep in mind when trying pegging with the Prostate Pen: Kate Carl - Pegging Tutorial With Prostate Pene...