Eduardo's eyes widen as he feels the first lubricated touch on his virgin ass, his heart pounding with anticipation and fear. His tutor, a seasoned gay man, patiently guides him, whispering encouragement as he gently eases his massive cock into Eduardo's tight hole. The room echoes with Eduardo's cries, a mix of discomfort and ecstasy, as he's taught the pleasures and pains of anal penetration, his body convulsing with each deep thrust.