Having casual sex can be exciting because it’s different people and different experiences， but i think sex with a long-term partner will always be better in the long run. With a partner you have much more time to learn what each other like and try out all kinds of dark and dirty stuff you might hide from one-nighters. And then aside from the better "raw" sex you get with your partner， you also get to make love too， which there really is no substitute for.