倚靠立起的膝盖而坐

full-body photo of a 28-year-old woman seated sideways on a 34-year-old man's thigh with bent legs across his lap while he leans back with knees raised and loosely holds her ankle, high-angle view, wearing a teal sweatshirt and loose navy trousers and a gray sweatshirt with loose olive trousers, both wearing white socks, on a picnic blanket in a sunny park, photorealistic, natural lighting