"You won't tell, will you, Argos?" the younger sibling pleads, his voice barely audible over the pounding water. "Not if you make it worth my while," Argos smirks, pushing Oliver to his knees. The room fills with the sound of wet slurps as Oliver tentatively explores Argos' ass, his inexperience evident. Argos growls, "Harder," and Oliver obliges, his tongue delving deeper, making Argos's cock throb with desire. The power dynamics shift as Oliver, fueled by his newfound kink, pins Argos against the wall, claiming his ass with a force that surprises them both.