Hi, and thanks for your question,
The Bible doesn’t say anything concrete about BDSM and fetishism. The Bible recognises marriage between one man and one woman as the only good, safe framework around sexual activity. The Bible doesn’t say anything about what sex positions or activities married people should be involved in.
However, it is important to remember that you should’t pressure one another; both people should want it; both should enjoy it and it should not cause injury or be humiliating to anyone. The Bible talks about what love is (1 Corinthians 13) and it is important to remember this as you think about sexual activities.
Best wishes