Justin Bieber Says The Key To A Good Relationship Is...

He may only be 18-years-old, but when it comes to being a boyfriend, Justin Bieber is beyond wise!
Biebs and his honey Selena Gomez, have been together since 2010 — that’s fooooreeeeever for a teen Hollywood couple!
So what are they doing right? According to The Biebs, the secret to their amazing relationship is:

“It’s just about being honest with one another. You just have to be honest, that’s the first thing, because if you’re not honest, then the relationship is just not a good relationship. At the end of the day, your girl would appreciate you being honest more than lying to her and vice versa.”

There ya have it! Honestly = longevity!!
Also, the fact they’re both super hot and rich can’t hurt. LOLZ!
[Image via WENN.]