GRMO-296 - Excitement! Genital research target Riku

Let's develop him, with his shy smile being cute, into a constitution where pleasure never stops. Riku, who has a sensitive penis that digs into his stomach like a drawn bowstring, requested development of… a limit ejaculation after much endurance! Enduring all stimulation to the maximum and flying away in joy at the permission to ejaculate, self-facial ejaculation!! He also requested anal development and dry orgasm with excitement!