Prompt: masterpiece, best quality,   pixiv fanbox illustration of Oopa lying on back, vaginal, dirty bed sheet,  pussy,   thigh grab,  shirt lift, flat chest,  bottomless, spread legs,  nipples, navel, penis,  one eye covered, looking at viewer, 1girl, solo  focus
Negative prompt: worst quality, low quality,  bad anatomy, extra limbs, out of frame, lowres