Of course he gets closer!

Unable to control himself, Naruto entered his mother's room as quietly as he could, making sure he was out of sight of the mirror. He watched as his mother admired herself in the mirror, fully aware that she was still one of the most attractive women in the village. Kushina stretched and posed in front of the mirror so much that Naruto was wondering in the back of his mind whether she knew he was there and was simply putting on a show, though he quickly squashed that thought.

After a minute of watching, Naruto couldn't contain himself any further, he lowered his pants and exposed his cock before he began jerking himself off to the sight of his beautiful mother. He knew this was wrong but he didn't care in the moment, he had an attractive woman in front of him making sexy poses, how else was he supposed to react?

But Naruto made one fatal error, he forgot his mother was also a shinobi and had heightened hearing. Kushina heard sounds that she knew shouldn't of been coming from anywhere in her room and after narrowing in on the source, she turned as was shocked to see her son was jerking himself off while looking at her, but what really got her attention was the size of her son's cock.