@Director Abbie
On these forums perhaps I add slightly more blatant elements when I talk about SX, in order to make it more accessible. Otherwise I have always run into the difficulty of people thinking "it's social." So I bring in some things from the standard definition of SX within enneagram and add my own personal subjective views (Fi) as well.
In real life however,
Personally I have not talked about SX blatantly in terms or sex or whatever.
What has usually happened is that I get hung up on whether someone "wants to be close to me" or not, and get frightened that maybe I am too much, and that I am repelling them. I have a lot of emotional pain/reactivity tied to this as well. For me it's romantic, yeah. But it doesn't necessarily have to manifest in romantic situations. It can be with friendships too, I think, though that is not the case for me. I think I have avoidant attachments to my friends.
So yeah I find overly sexual description "meh" as well, so I understand where you are coming from when you say "moronic"
IMO, Fi types will speak of their relationships in terms of closeness, bonding, etc. and when SX is there, it's more subtle, implied, due to the dislike of blatant SX behavior/descriptions/anything for infantile/caregivers.
And so I brought in that description on purpose, where it states that LSEs and SLIs may live "outside sexuality" and may have to intellectualize it in order to be comfortable. Can probably apply to I/Cs in general.
Anyways, so yeah, I don't think SX has to be blatantly sexual, nor restricted just to romantic relationships.