ad Paul: (…) …In 5th or 6th class…and “the wheelbarrow” happened to be a girl I liked.
It´s not pornographic (…)
I’m not sure if by 5th or 6th class you mean 11 or 12 year old kids, if you do, I sure hope your story is not pornographic 
Generally speaking, I always tell my language exchange partners that “taboo words” are part of any language and that it is useful to learn them. You just need to know when to use them and for me this means to usually refrain from actively using them. Knowledge of these expressions, however, can never hurt.
It also very much depends on how these words and expressions are presented. If you just deliver a list of obscene words, well, I guess there is no need to try and upload a lesson for that because there are enough websites out there where you can download swearwords in numerous languages.
The way you plan to do things, seems to be different though. It sounds more like an xxx rated diary 
Personally, I would not be against it as long as you are not endorsing any acts of violence, drug use etc. I have to admit, however, that in my own language studies I always try to focus on getting a very good general understanding of the language first before I try to familiarize myself with “taboo expressions”.
When things are put in perspective, these lessons might turn out to be interesting for quite a few people. The lessons should be marked as lessons containing adult language. Sure, teens will want to listen to them too, but I’m convinced there is nothing they won’t have heard or said in their own language already.
I have a Taiwanese friend who learned most of his German from German rap singers. He is a very nice and friendly guy, but the minute he starts speaking German my stomach turns upside down. He even once greeted my father with “Hey, Alter, was geht ab?” ---- I almost dropped dead lol.
I keep telling him that people don’t really talk like this but he insists that he wants to learn “real German” and somehow he must think that the way Bushido and Co talk is the “real German” (if that were the case I’d readily give up my native tongue).
EDIT: As “great” a guy as my father is, people normally “greet” him and don’t “great” him lol. Typos can be a real pain in the neck (or a little futher down ;-)).