Teen Gothic

I’ve seen a lot of fashion brands add bdsm elements to anything they have that is gothic “gothic dress with harness straps etc..”

Also I’ve seen a lot of people that always associate goth girls with bdsm “like when they see them they immediately assume they’re into bdsm etc..”

These are just few examples of what I’m trying to say

So… now to the real question

What is the history and link/association between goth culture and bdsm? Is bdsm inherently part of the culture? If bdsm is not, then how did all of this associations between the two start?