Use Scribd to find author names . Once you find a writer you like (e.g., "Nimal Jay" or "Kamala V"), Google them directly. Many have Patreon accounts or sell their PDFs for $1.99 on Gumroad. This pays the author directly and you get a clean PDF without risk.
Decades ago, adult pocketbooks, colloquially known as "Wal Katha," were printed on cheap paper and sold discreetly at newsstands and bus stations. They were passed around covertly due to strict social taboos surrounding adult content. Sinhala Wal Katha Scribd
Downloadable files on unverified third-party blogs mimicking document links can contain viruses targeting mobile devices. Navigating Digital Libraries Responsibly Use Scribd to find author names