Not all the stories here are sweetness and light. Sometimes a storyteller needs to go to the darker side of life to gain redemption. We have all experienced depression, and self-hate at various times in our lives...it is a part of being human. Having these elements in a story makes it more realistic, and for some of us it makes it easier to relate to the characters through their imperfections. Sometimes it is the darker side of a character that unknowingly pulls us into the story. It can make us wonder about our own redemption, or perhaps a fall from grace.
The best stories need a conflict, either internal or external to overcome or to adapt and grow. Some actions like self-harm are without a doubt very dark, but if it is to show a low point in their lives, there is nothing wrong with that, because it serves to magnify how far they have come or how far they have to go. However, if the point is to glorify self-harm and to promote this type of behavior, then it is best left out entirely.
It is one thing to show desperation, and it is another thing to promote it. I hope this helps you in your decision.
Huggs and Snuggs,
As long as your story is somewhat related to what Sissy Kiss is about you should be fine. The characters would have to be all adult with an "R" rating.
I wrote a story about being depressed a long time ago. Please aviod excessive violence to be safe, a moderator will read your story for approval.