I walked Into my brothers room and his door was ajar, I heard heavy pantings from inside, so I thought I would take a look. I was surprised to see my panties which I left in the laundry room, in his hand. He was examining it's crotch, which was coated in my natural lubrication and he was sniffing it, while stroking himself down. He's my elder brother and I'm disgusted by this act. Is this normal for a brother to do and I'm totally clueless on, what I've to do... It is a cloth that touches my most intimate part and I'm very much concerned about his behaviour.