asanagi, hot tub, steam, naked, 1girl, 1boy, anatomically correct, proper proportions, dim lighting, low lighting,, side view of the woman, pov view of penis, high bun haircut, disheveled, shiny skin, sweaty, big breasts, natural breasts, smug eyes, depth of field, penis is blurred by depth of field, she is sitting in the onsen and is partially submerged, she is playing with her nipples, she has a gentle loving smile, she is licking her upper lip, outdoors onsen a night, glistening wet stones and water, bokeh, realistic