Charlie Puth says being “horny” helps him make better music. The ‘Marvin Gaye’ hitmaker believes that feeling frisky is a key component to being a creative. In response to a joke about him appearing “incredibly horny” posted on Twitter by comic Sarah Schauer, the 30-year-old musician told Bustle: “I think I actually had sex that night when I saw that. Wow, people really do understand me. “I’m really horny. I think to be a creative, you have to be a little bit.” Charlie – whose song ‘Cheating on You’ is rumoured to contain a clip of him having an actual orgasm – said the first song he “jerked o…