My sub asked to try sounding for the first time. Such a brave boy, offering his long, thick cock for me to penetrate. I lubed up my sound and slowly slid it into his urethra, feeling him tremble in my hands. He moaned, shivered and looked absolutely shocked by how much he loved feeling me inside of his cock. I told him I needed to train him to cum from sounding alone... he showed me that he could erupt in a massive cumshot while his cock was filled up. (This is the full cut! There is also a shorter cinematic version of this scene available in my store that's roughly 5m. They are the same session but different edits)
