My name is Doctor Alexander Xavius, otherwise known as Doctor X. I'm a sex therapist specializing in the sexual behaviour of heterosexual males between the ages of eighteen and twenty-six. For the last three years I've been conducting interviews with willing participants from across the country asking them about their sexual activity. Within these pages are the transcripts of sessions I have conducted with my subjects. Their names have been changed to protect their identities, but the content of their experiences and experimentations remain true.

This is the confession of a straight guy named Jacob who, as a young mechanic at Thompson Auto Repair, finds himself drawn to Mack, his commanding, rough-edged boss nearly twice his age. What begins as lingering glances and stolen touches erupts into a raw, relentless affair of dominance, submission, and aching desire. Trapped between the hum of engines and the press of steel, Jacob learns how much pleasure can be found in surrender?and how impossible it is to walk away once Mack has him in his grip.