lots of people type as Sx/So because they like to connect with people and seek intimacy from others. while it's true that Sx/So's do this, virtually everyone would say they do/like this and there is a lot more to Sx/So than just this.
Sx/So's of any type are
- full of sexual energy, it may not be directed toward sex, but it is still a sexual energy
- demand attention (and tend to get it)
- a yin/yang quality. fiery, lusty and intense some of the time; tender and intimate at other times.
- a sense of longing for something
obvious these traits are going to be a little more intense in some types (say, an ESFP 7w8) and a little more down played in others (say, an ISTJ 1w9) but they are still there no matter what enneagram or MBTI type the person is.