Noticing my brother stealing peeks turned me on.
When I was 14 I first noticed this happen. I came out of the shower, as usual, with my bathrobe on and wearing panties but no bra, and with a towel around my head as my hair dried. I would sit on the floor in front of the TV and watch TV with my brother, who usually sat on the sofa opposite me.
I was sitting with my knees drawn up and glanced over at my 16 year old brother who was staring intensely at my crotch. I realized that the robe was not covering me beneath my legs and he could see my panties and my crotch. I just reacted and quickly dropped my legs down and pretended like nothing happened, but my heart was really racing.
The next night I went through my routine and for some reason wanted to see if he would look again, so I pulled my legs up again, but this time made sure to tuck the robe under my legs. Sure enough, it didn't take long before he was glancing down at me and trying to sneak a peek.
It excited me, and I went into my bedroom and rubbed myself fiercely until I came. Then I came back out and sat down again. But it didn't take long until I was excited by it again, and so decided to give him a panty show and got totally excited watching him steal peeks. He didn't know I was doing it on purpose, but it really made me horny to be wanted like that. Even though a little weird it was my brother, I figured he was just curious about girls in general, not so much me.
A few weeks later I came home from school and walked into my room. The door was open and as I came around the corner I saw my brother laying on my bed with a pair of my panties, and his pants pulled down to his knees as he was masturbating. I turned round and walked out unnoticed, but it totally turned me on, and I went into the the bathroom and masturbated for a very long time.
Am I a bad person for that?