I have written a mini-article on how Deltas practice BDSM before. If you are curious, you may read on. And surely, some may disagree with some of the points I've made in there; depending on what kind of experiences you've had with BDSM as a Delta person. I'd like to know your feedback, especially by said Deltas. (P.S: I am not a Delta NF who has engaged in BDSM; I've merely researched the topic and listened to Delta NFs share their own experiences.)
I'll start with the types most likely to engage in/enjoy BDSM. These would be the Delta NFs (Ne-Fi-Te-Si). Here the entire spectrum of master/servant applies the best. The sub in a Delta BDSM relation will serve their master; most likely the "Pseudo-Caretaker", Delta NF, will serve the "Caretaker", Delta ST.
(In the following example, I will assume the Delta NF is female, and the Delta ST male. This is the most classic combination. A male Delta NF is more "flexible", more of a "switch" than the female kind; same would apply to the Delta ST female. So, the interaction is more complex in those combinations.)
In BDSM as a lifestyle, the Delta serving can extend to household duties (Si) while wearing a collar and other kinds of appliances... Or specific actions, like licking their toes. Mostly signs of submission in terms of "pseudo caretaking" (Si). In return, the Delta ST/Caretaker will take care of his sub in a more literal way, at least so it is perceived that way by the partners.
First, he might "punish" them for committing a wrong or being naughty (Fi). A naughtiness in that content could be: not cleaning something properly (weak Te), or refusing to lick their toes, etc. Refusing a duty, essentially. Or, in a strictly sexual sense, the Delta sub may have a personal burden on their heart, that makes them seek out punishment by a certain person they can trust in and makes them feel safe (Si), while suffering for their sins/repressed desires (Fi). Here the interplay of moments of Sadomasochism is well received, though boundaries are never being crossed. Clear consent is very important for this Quadra; it ensures the safety (Si) the Delta sub craves. Hence "safe words" are the most often and likely used in this Quadra, and get the utmost respect.
Nevertheless, BDSM sessions can be very spontaneous for this couple (Ne), with no fear of childlike associations; like in forms of using furry handcuffs, or playing creative dress-up (e.g Baby, Animals etc.)
The Delta ST dom feels compassion for his obedient servant. He also feels pride and a sense of duty, for he can make her teach (Te), as her "Daddy", things she otherwise would be helpless in – this is his way of taking care (Si) of her. And if all the teaching in the world does not make her improve immediately, so he will just continue "punishing" her amicably and consensually, and rewarding her at the end for taking it, by engaging in soft "aftercare" (Si) – mostly related to cuddling, soft kisses and/or the regular "lovemaking".
Notes:
• Beta Quadra interaction could look pretty BDSM to outsiders, because of the strong Dom/Sub interplay; but it's the natural interaction of Aggressor/Victim.
• Based on my observations, the types most likely to engage in BDSM related activities: Delta NF, Gamma SF.
• Beta STs don't care for BDSM, for the most part. All the "rules" and "safe words" mean nothing to them, they'll just do whatever they want to do, without any *etiquette*. A lot of BDSM practice involves etiquette, based on my research. Which is rather Fi-Te.
• I don't know of any SLE or LSI who was sincerely (heavily) interested in BDSM. LSI is described as having a more traditional/conventional approach to sex, anyways. Probably because of Ne PoLR. From the two, though, SLE will be more likely to engage in BDSM practices.
• BDSM is mostly "dominated" (no pun intended) by Delta NFs nowadays. It already shows in how the girl in 50 Shades is a Delta NF. The stereotypical BDSM girl is Delta NF, not Gamma SF (though they are next).