[Project Harakiri (Kaishaku)] Nisenisekoi (Nisekoi) {doujin-moe.us}

Seishirou Tsugumi can stare down anyone without flinching, but Raku Ichijou knows exactly how to undo her—starting with her lips stretched around him so deep she can barely breathe, eyes watering as he finishes in her mouth. Their secret 'practice' sessions keep escalating: no strength left in her hips, skirt hiked up as he takes her from behind, and a condom supply that has mysteriously run dry. When he murmurs how much he loves the erotic face she makes, her insistence that it's all a lie melts away as she takes him to the hilt and lets him pour himself deep inside.