Evil Crew (Fansadox Collection 70)

In "Evil Crew (Fansadox Collection 70)" by Templeton, the sadistic Matanzas father and son capture Nicole and Mike, subjecting them to prolonged sexual torture, beatings, and psychological abuse on a hijacked catamaran and an uninhabited island. After a failed escape attempt, the captors brutally torture Mike by dangling him over shark-infested waters and force the utterly broken Nicole to consume his severed testicles. The story ends with Nicole locked in garbage, utterly broken and obedient, as the captors promise lifelong degradation and relentless rape.