I recently discovered BDSM and I've been reading everything I can find. My parents are very religious and the thought of them finding out horrifies me. Am I doing something wrong?

Growing up in a religious household creates a framework of values, and discovering an aspect of yourself that conflicts with that framework produces a particular kind of internal tension. The horror of imagined discovery often runs well ahead of any actual disclosure.

The most useful distinction to make is between the question of whether BDSM is compatible with your own values and the question of what your parents would think. These are separate questions, and many people conflate them because parental judgment and moral judgment have been the same voice for most of their lives.

If you have genuinely worked through what consensual BDSM means ethically, the emphasis on care, communication, mutual benefit, and informed consent, and found it compatible with your own values, that is the conclusion that matters for your actual life. Most serious practitioners describe kink as a deeply ethical practice precisely because of those elements.

Your parents' religious framework is their own. You are not obligated to live inside it indefinitely, and the fact that they would disapprove is not evidence of wrongdoing any more than disapproval in other areas of life constitutes wrongdoing.

Practically, most adults manage personal aspects of their lives privately from family without that constituting deception. Adults do not share their sexuality with parents in any detail as a routine matter. The same discretion that applies to your sex life generally applies here.

If you are working through a genuine conflict between religious belief and your emerging interests, talking to a counsellor who is both kink-aware and sympathetic to religious backgrounds can be genuinely useful.