Okay so I understand I can't write pre 18 year old characters involved in sexual acts but am I allowed to have a story where the adult male protagonist suddenly transforms into a pre 18 year old boy and has sexual acts with adult women? The male character that transforms would still have his adult mind that he had before he transformed.
no. You can take a look at the CHYOA Rule No. 1 to see what is allowed. If you have any questions about the rules, feel free to ask.
