Two naive cousins, both 18 and inexperienced, find themselves alone and curious in a cramped attic. The petite teenage girl, with her small breasts and tight body, tentatively touches her cousin's growing bulge, feeling his hardness for the first time. He responds by caressing her virgin pussy through her panties, making her gasp. They explore each other's bodies, learning the art of pleasure, as their innocence gives way to a taboo passion.