[Furube] Falling with Mother Part 3

In a cramped room, a flushed mother wearing glasses is taken from behind by her son, his hands gripping her exposed breasts as sweat beads on their bodies; a sudden jolt makes her gasp and doubt the intent while he shouts about locking the front door, creating uneasy tension, and the scene blends frantic denial with dark, forbidden intimacy as the third part of an incestuous doujinshi series.