Two close friends, Riku and Hinako. When they're together, they're always cheerful and lively—but the moment one of them leaves, a sudden, intense sexual tension fills the air. When I'm alone with Riku, she forces herself on me with passionate kisses, licks my body with an insanely aroused expression, and starts sucking my cock like she's extra sensitive from being premenstrual. She won't let go, and her aggressive blowjob makes me cum in her mouth. But she only gets hornier, her face turning slutty as her pussy gets soaked, enticing me further. Right then and there, I take her from behind, pounding into her until I erupt deep inside her squirting, convulsing pussy. After that, she drags me to bed and begs for round two. She seduces me so lewdly that when we switch to cowgirl, I'm overwhelmed with excitement—so I flip her over and pound her from behind until she's sweating, moaning, and climaxing into total ecstasy. It felt absolutely incredible. But later, Hinako finds out about me and Riku, and confronts me furiously. "Why did you two sleep together when I wasn't around? That's so unfair!" she yells, then forcibly jerks me off until I'm rock hard. Just like her friend, she gives me an intense, sloppy blowjob, sucking my cock so well I can't help but explode. Then she pulls me to bed, and I end up fucking her nonstop too. She must've been pent-up for ages—she rides me on her own, grinding wildly while gushing huge squirts. She's just too damn horny. The fact that these two close friends are actually cock-hungry sisters? Absolutely mind-blowingly hot.