Ventress watched, perversely fascinated, the play of muscles on his back and taut ass, as he thrust and arched, trying vainly to increase the friction.

• 文崔斯极度着迷地看着他展示后背和屁股上的紧凑肌肉，不断地擦过去又弓起身来，徒劳地试图增大摩擦力。