Stepson Maou ni Maketa Yuusha ga Succubus to shite Jinsei o Ouka suru Hanashi - Original Doublepenetration
[すらいむのかんむり (かんむり)] 魔王に負けた勇者♂がサキュバスとして人生を謳歌する話 [英訳]
#374319 - Small rivulets of her juices were running down the insides of Casey's thighs, and when Gus stepped behind her with his pants down around his knees, she never let go of his huge erection, but held on and guided its tip to her sopping-wet entrance. Gus put one hand on the young woman's back and he felt her tremble. But then Casey's internal muscles started sucking and squeezing and Gus felt himself hardening again.