Is this bad and was he taking advantage of me?

I was at a pool party and it started raining so everyone went inside eat. Me and my best friend asked me if i wanted to stay outside and sit in the hot tub with him so we sat and talked for a while and then we started kissing. Then he started kissing my neck and chest and stomach. Then he started kissing my thigh and gave me a hickey on accident but i put makeup on it and you cant tell its there. Were in high school. I have two questions, is this slutty, and does it sound like he was just taking advantage of me?