Rika Hoshimi came to the studio believing that she was going to be photographed for a gravure shoot. While taking photos, not realizing that it was a prank, a big-dick man attacks her from behind, causing her to panic! Rika is surprised when he immediately inserts his penis into her, but as he speeds up his thrusts, she feels good and reaches a climax! One after another, the big-dick pranksters attack her mercilessly!