non consensual touching...

okay so last night I was to a party and this guy was there and he was like super drunk. I was sitting on the back of someone's truck and he came up and sat beside me. I was sitting on the side of the truck bed with my legs stretched out. he put his hand under one of my legs and then like put it on top of my thigh and started moving up. I stopped him but I literally feel so violated and I can't get that feeling to go away. I feel gross. I know that he only touched my thigh but he got super close to my vagina before I was able to stop him. I can still feel his hand there and I feel so violated and uncomfortable and just altogether gross. How do I make this stop?