[Inuboshi] Happy ★ Angel 3 (COMIC HOTMILK 2020-11) {defski}

A bashful twintailed girl named Hana-chan dazedly accepts her brother Koutarou's advances, melting into a heated encounter where her tight, inexperienced body trembles beneath his touch and quickly devolves into a messy creampie. The intimacy escalates when a third party—Shien-chan and her lively sibling Sen-chan—arrive to crash the fun, turning the tender tryst into an enthusiastic, dripping foursome of bold claims, squirting releases, and sweet-voiced begging for more.