What are 'gym lips' and how do you pull off this TikTok beauty trick?

Make-up artist Kelli Anne Sewell's tip went viral on TikTok. Photo: AFP

Why resort to botox injections when a simple lip liner can help you achieve full, luscious lips?

A New York make-up artist by the name of Kelli Anne Sewell recently revealed the ultimate trick to make lips look fuller, giving them a plumped-up look with no need for surgery or other procedures.