Cool Mom

Before I came out, when I was 17, my mom found one of her thongs at the end of my bed.
Usually I made the bed but on Fridays she changed the sheets. One Friday I went to the gym early and forgot. When I got home she told me about her find but instead of being shitty, she suggested it would be better if I wore thongs designed for men.
She hadn't seen me naked much since my early teens but knew I was pretty big down there.
We went on line together and she bought a couple of black lace thongs and a pair of bikini style lace panties. They had pouches for men.
So, every morning when I got out of bed and had jacked off like most guys do, I wore my lace gear around the house until I got my shower.
Bring gay I had no interest in my mom sexually, and anyways she was my mom. I know some guys do but not me.
It never occurred to me that seeing my well toned body in a bulging thong was turning her on.
After I came out we were having breakfast one morning and she asked me to start wearing boxers around the house, rather than lingerie. I was 19 then so more a man than a teen and I was still maturing physically. My body was well developed from the gym and my cock had grown another inch or so.
She came right out with it.
She confessed she was attracted to me sexually, which she said as not healthy.
Instead of accommodating her, I bought some very tight boxer briefs and started wearing those.
Eventually it got too much for her and she asked me to fuck her.
I didn't, and actually couldn't. I was totally gay and had never had sex with a girl.
I moved out of home into an apartment with a couple of gay friends and only went to see my mom fully clothed.
I know stuff happens between moms and their sons, but I was a real shit teasing her knowing how she felt. I am sorry I did that.