Meaning
What does S-Cute mean?
S-Cute refers to something that is really cute, or S(o) Cute.
It may be utilized for an animal, a painting, or a girl.
In the case of google, if you search for S-Cute, you’ll find a massive amount of adult entertainment, with petite Asian girls.
via MEME
Origin
What's the origin of S-Cute?
The first Urban Dictionary on s-cute was added in 2007, defining it as the combination of the words “sweet” and “cute”, resulting in the portmanteau; scute.
Spread & Usage
How did S-Cute spread?
S-Cute is not one of the more popular terms out there so detailed information about the spread is unavailable.
After its first entry in the Urban Dictionairy back in 2007 the term was vaguely used.
It gained a higher popularity with the recent rise of fame of Anime and Kawaii Culture, leading to a more widespread use of the term.
Also, S-cute itself is a popular adult entertainment category these days, adding further to the reach of the term.