Singers Louis Tomlinson and Harry Styles of One Direction pose for photos at theSiriusXM Studio on March 16, 2012 in New York City. Credit: Astrid Stawiarz/Getty Images

Boys will be boys!

The bromance between One Direction band members Louis Tomlinson and Harry Styles inspired fans to dub them "Larry," but the singers want the world to know their tight bond is strictly platonic.

"This is a subject that was funny at first but now is actually hard to deal with, as I am in relationship [with Hollister model Eleanor Calder]," Tomlinson, 20, tells Tumblr's Storyboard. "Me and Harry are best friends. People look into our every move -- it is actually affecting the way me and Harry are in public."

"We want to joke around, but there seems to be a different rumor every time we do anything," Tomlinson adds. "I act the same way with Harry as I do any of the other boys."

Rumors about their friendship aside, Tomlinson only has eyes for Calder, his girlfriend of nine months. "I'm a one-woman man with Eleanor,"  Tomlinson says in Us Weekly's One Direction special issue (out now). "I'm a very loyal boyfriend."

In fact, Tomlinson met Calder -- who is also a student at the University of Manchester -- through his BFF and bandmate Styles, 18. Since then, the two have been happier than ever. "I'm a bit of a joker," Tomlinson tells Us. "I can be a romantic -- but not too sickly."