AO3 name: Esteliel
Letter: https://esteliel.dreamwidth.org/477711.html

Disco Elysium
Harry/Kim

Dune - Frank Herbert
Leto II/Farad'n Corrino

His Dark Materials (TV)
Carlo Boreal/Thomas

Kinks: BDSM, D/s, rape/noncon/dubcon, painplay, come play, watersports, humiliation, tentacles, cock cages, anal training, breath play, public use, anonymous sex, sounding, spanking, prostitution, age and/or power differences, size kink, fisting, double penetration, felching, enemas, orgasm denial, chastity, virginity kink, (forced) exposure, begging, marks on skin, collars, CBT, ball stretching, sex with a sleeping partner, extensive fingering and stretching, dirty talk, bestiality, overstimulation, edging, slavefic, auctions, sex toys, whipping/flogging, knife play, boot kink, gun kink, object insertion

My letter has more smut likes and smutty prompts.