Kiyoshi shojo shibari (1979)

Starts with the blonde on her knees, sucking dude’s cock like she’s starving. She’s got a tattoo low on her back—looks like a small vine or something. He’s standing, pants down, just letting her work. Then they switch to missionary on a messy bed, sheets half-off, blue-ish light making it look moody. The brunette’s turn next—she’s tied up in shibari ropes, legs spread while he eats her out. You can see the ropes digging into her skin a little, which adds to it. They switch between positions a lot, but the rope work stays the whole time. Camera gets close for the oral shots, so you see everything. Both girls are skinny but not bony, and the blonde’s got a little more curve to her hips. No weird angles or bad lighting—just straight-up fucking with some kink.