I helped mom pick ** for son

I was at a local big box store in women's underwear department. I was picking up some ** for myself. I'm an adult male that wears **. And this lady comes up to me and ask me if I could help her. She wanted to know if I could help her grandson pick out some underwear for him. He didn't like anything in the boys underwear section. He said wanted wear ** .
So she brought him in to this department and I was there . So I asked what he was willing to wear. He said he wanted to try thongs and bikini briefs like his sister wears.
So I helped him pick a few out and got the right sizes for him. And we walked to the the check out. She thanked me and told me that his mother was not around so she helped her son look after his kids. I told her not to be ashamed of him and that he might just be going through a phase or it might be something he likes doing. And just to support him.