[Otokonoko de Asobou (Yuuki Konefu)] Ane ga Ole o Konnani Shimashita [Lewd Rider Ero]

A busty, bespectacled big sister turns her little brother into her dress-up kitty—blindfolded, squeezed into a strappy bikini, and fitted with cat ears and a tail plug—then edges his taped-up cock to the brink again and again. She purrs that cumming after holding back feels way better, teasing him until he's moaning like a girl and begging her not to stop, her strap-on harness ready for when he finally breaks. By the end, her cute naughty kitty is a drooling, twitching mess, utterly hooked on everything his sister does to him.