How do you make a male's lips look bigger and fuller?

I am a male model and have always had an issue with having thin lips and a fairly small mouth. I a interested in a non-invasive technique to make my lips and mouth appear larger. Temporary techniques are fine as long as they last a few hours. However, if anyone is familiar with a way to have longer-lasting results that would be fantastic :) I have found that the limp plumper's I've tried that irritate the area make it look like I am wearing gloss or something, which appears too feminine. Thanks!