[Ishigami Kazui] Osananajimi ni Onegai (COMIC Penguin Club Sanzokuban 2011-06) [s. D. g scans]

Miku, a schoolgirl in a uniform, is shocked when her childhood friend Satoru bluntly asks what she means by wanting to "learn to have sex," and she protests that they're only friends. Despite her protests, he pulls her into a hidden part of the park, and the tension escalates as she reluctantly submits, her body responding to his advances. The scene culminates in an explicit, intimate encounter that overwhelms her, leaving her breathless as the pair continue their illicit lesson.