Sometimes one can not really have an opinion on something they have not tried once in their lifetime. We often start considering particular things cool and favorable and others unethical and strange when in reality we have no idea how experiencing one of these could change our entire judgment about it. The same had been your case. People like you and me consider BDSM to be something which only involves pain, the kind of pain that gives no pleasure which is completely untrue because there are so many people out there who enjoy and consider themselves to be lucky enough to have a sex partner that favors it for the kind of passion and aggressiveness comes with it makes one extremely horny and erotic. I first coincidently experienced BDSM too with a woman who was interested in having either herself cuffed and spanked or her partner. While we were in the middle of an extremely loveable blowjob, she quickly turned her back at me and fetched some handcuffs that confused me for a second but since I was so caught up with my hormonal feelings, I just let her do what she wanted and ended up in a bed where my hands were tied and the woman literally went through all the angles of my body, licking and kissing, blowing my senses away. All I could do was cum and honestly have myself entertained. Later, I did the same to her in fact with her legs locked in a rod and used a rope to spank her. Her moans literally made the entire experience worthwhile!