...ah yes, we're at that stage
I've reached the stage of turning my brain off and reading terrible fic and going "omg, if you're too embarrassed to call a penis a 'penis', then it's time to reconsider whether you ought to be writing porn!"
Long rant short: if you're embarrassed by sex and kink, you are not ready to write it, I don't care how old you are.
Also, I'm really tired of the constant mystification of sex. Libido is like any other biological urge, it's really not that special. I really need the adults in the room to start treating sex the same way they treat eating and breathing. Y'all need to stop using "think of the children" as an excuse for your own immaturity.
(This brought on by reading too many fics where the author is clearly embarrassed by their own kinks.)