Rina, the sister who came to take care of her brother with a cold. The brother had fallen asleep at some point, but when he woke up suddenly, his sister was leaning against the bed sleeping. For some reason, his sister smelled really good. He couldn't help but smell her hair. He peeked into her cleavage and ended up taking out his dick in the futon, jerking off while smelling his sister's hair. The brother didn't notice even when his sister woke up, he was too engrossed. When his sister pointed it out, he couldn't come up with an excuse, making the situation awkward. Then, unexpectedly, his sister proposed, "Since you just broke up with your girlfriend and you're a guy after all, stuff like this happens, right. How about I help you finish this time?" Although embarrassed, she put her hand inside the futon and started jerking him off. The brother became more excited and moved the futon to show his dick. Embarrassed but not stopping, his sister. But since he still couldn't cum, the brother requested to touch her breasts. His sister let him, but since he still couldn't cum, she tried giving head. Even so, he still couldn't cum, so he requested cunnilingus. "Fine," she said, taking off her skirt and panties for a 69. But since he still couldn't cum, his sister proposed, "Since we're siblings, we can't insert it, but rubbing until climax is fine, so cum like that!"
