I went out with this guy at a party and after the party was over and we were about to go home, things got comfortable between us and we began to kiss. After that, he began calling me and stuff. But I want to know if kissing him on the 1st date, gave the impression that I was easy or something because afterwards all he ever talk about his sexual stuff.

I don't consider kissing bad on a first date.

If you only went on one date with this guy and he is already talking about sexual stuff then I wouldn't even bother with him.