[mimamoriencyo] It's a manga about a little sister sucking on her big brother's penis [Full Color]

When the teasing little sister barges into her big brother's room claiming she's playing hide-and-seek, an innocent game quickly spirals into a charged negotiation over his paycheck. With flushed cheeks and a mischievous sparkle in her eyes, she boldly kneels before him, offering her mouth in exchange for more spending money. The flustered older brother can only stammer as her warm, eager tongue works him deeper, leaving him breathless and completely at her mercy.