Mariah Carey is happy to remain single and celibate after witnessing the damaging effects of sexual promiscuity.

The singer is scarred by the experiences of her elder sister ALISON, who slipped into prostitution and drug use, and blames a culture of casual sex.

She says, "Casual sex destroys self respect. Some people use it to feel better about themselves but in fact it ruins lives. I've seen it for myself, and that is why I have never been comfortable with promiscuity."