Noooo bdsm is an umbrella, there's a lot of things that can fall into it and for the most part they don't involve pain Most stories add the more mainstream idea of what bdsm is, specifically focus on s&m (sadist and masoquist tendencies) but it doesn't have to be scary or painful
YK what I kinda fuck with this, just the tentacle and the father figure was uncomfortable but overall it’s kinda cute. :,)