Since she was young, Hikari-san has been a sheltered girl. Due to her strict upbringing, she has only had two sexual partners. When she was younger, she had almost no interest in sex and didn't even know how to masturbate. Her husband, who works at a major bank and is known for his seriousness, also lacks experience with women and has poor technique, making sex bland. On top of that, his penis is small. She once wondered if sex was supposed to be like this and even consulted a friend... Lifting her skirt, he caresses her buttocks. When she tries a vibrator for the first time, she can't hide her bewilderment at the unfamiliar sensation. Blushing with embarrassment, she desperately suppresses her moans but eventually reaches orgasm from the vibrator. A large amount of fluid drips from her vagina... Taking out his penis from his boxers, she says, 'It's too big to lick easily,' but gradually gets used to its size, making slurping sounds and licking eagerly with a lewd expression. He inserts his fully erect penis into her vagina. Because the entrance is narrow, he can feel her vagina stretching as he pushes in. Overwhelmed by the sensation of an unfamiliarly large penis, she eventually starts moving her hips on her own, savoring the experience. Throughout, whether due to her lack of experience or embarrassment, she desperately tries to suppress her moans even when feeling pleasure. But in the end, those suppressed sounds turn into screams...
