Hello there:
LSI sounds like a sort of NLP (neo-linguistic programming) idea.) If it's not-- and just a fanc abbreviation akin to SEO and Keyword work, then I wouldn't have to do much extra research to get these done for you. That said, cunnilingus is a fun topic, I'm good at it, and wouldn't mind writing about it given your specifications were clear. Please PM if the rate is amenable to you and I can send you an appropriate sample.
Thanks and Peace,
David