One of the four siblings from Michael Jackson’s alleged “secret family” who have accused the pop star of sexually assaulting them as kids claimed Jackson would drink his urine to prove how much he loved him. Dominic Cascio, who along with his two brothers and sister has filed a lawsuit alleging Jackson was a serial child sex predator who groomed them, claimed that the singer would play twisted sexual games with him — and had a sick way of showing his affection. “He would drink my urine and tell me, ‘This is how much I love you.’ I’m maybe 12 years old at the time. Like, I’m a child who’s seeing this man do this,” Dominic revealed in a bombshell interview with “60 Minutes Australia” that aired Sunday night. Michael Jackson with Dominic Cascio when he was nine-years-old. 60 Minutes Dominic Cascio details the alleged abuse he endured from late pop star Michael Jackson. 60 Minutes Australia “And I said, ‘Oh, I guess he really does love me.…