[Ijiise] Sono Ura de Kaa-san wa / Behind My Back, Mother Was... {Doujins.com}

A flushed, curvy mother kneels on a rumpled bed as several men close in, turning a private bedroom encounter into a feverish tangle of mouths, hands, and overlapping bodies. The title’s “behind my back” premise gives way to brazen group intimacy and teasing declarations, while her flushed face, arched posture, and breathless cries sell the mounting sense of betrayal and surrender. Saturated color, glossy highlights, and exuberant sound effects make the escalating encounter read like a lurid erotic melodrama.