筋肉自慢の男たちが集う会員制ジムのトレーナーのるうは人一倍性欲が強い。体力と精力がありそうなマッチョな会員男性ばかりを狙って際どいトレーニングウェアで桃尻を見せつけ誘惑。トレーニング後のパンプアップした脳筋チンポに跨り、プリケツを打ち付け何度も絶頂!手当たり次第に性欲発散しまくる!
Ruu, a trainer at a members-only gym where men who pride themselves on their muscles gather, has a stronger sexual desire than most people. Targeting only muscular male members who seem to have physical strength and energy, she seduces them by showing off her peach buttocks in risqué training wear. After training, she straddles the pumped-up penis and hits her ass repeatedly to climax! I will release my sexual desire at random!