Harry Styles, Zayn Malik, Louis Tomlinson:...

Harry Styles, Liam Payne, Zayn Malik, and Louis Tomlinson all love tattoos, but one member of One Direction has taken his body art fetish just a little too far.

Louis and Liam don't get inked up as much as Hazza and

Zayn, so it should be pretty obvious that one of the two living canvases is the culprit here. Harry has covered his bod with tattoos of ships, birds, and stars, while Zayn's collection includes a microphone, crossed fingers, and a skull.

The guys seemed to be engaged in some sort of boy band body art battle to see who can get the most tattoos, and Harry Styles has come up with a way to defeat Zayn MalikÂ—he's allegedly purchased his own tattoo kit and has started letting his friends doodle on him with it. Perhaps he got the idea to buy it after he let his pal Ed Sheeran tattoo a squiggly padlock on his arm.

Kevin Paul, the professional tattoo artist that Harry often goes to, advised Hazza not to get the kit. According to Kevin, Hazza is putting his health at riskÂ—he could contract a nasty disease like hepatitis C if he decides to start sharing his equipment with others.

Since hepatitis C often has no symptoms for decades, Hazza could end up being infected for years without knowing it. So if he must use the tattoo kit, hopefully he only uses it on himself.

Perhaps Hazza just sees his body as being like a scrapbook or photo albumÂ—instead of taking pictures of the people he meets, he lets them scribble something on his body. Unfortunately there's no word on if Taylor Swift got to leave her mark on Hazza.

Directioners will have fun guessing which of Harry's tattoos was inked by one of his acquaintances and not by a professional. The word "Hi" on his arm might be the work of a friend, and he has a lot of smaller tats that could also be mementos inked by people he knows.

Hopefully the One Direction star never regrets letting people use his body as a sketching pad since laser removal can be very painful, and hopefully he keeps his tattoo kit locked away when he's passed out after a night of heavy drinkingÂ—he might wake up with something naughty inked on his forehead.