Justin Bieber and Selena Gomez tell each other 'I love you' 

Justin Bieber and Selena Gomez' s relationship continues to heat up.

Bieber and Gomez have attended a red carpet event together, kissed on live TV, taken a PDA-filled Hawaiian vacation, and even met the parents. Now, the teen power couple are telling each other "I love you" in public.

According to E! Online,  Bieber, 17, and Gomez, 18, took  a shopping trip together at Armani Exchange in New York on Tuesday. There, along with hand-holding, kissing, and Gomez picking out some shirts for her boyfriend, the couple told each other "I love you."

"They both said 'I love you' to each other, but Justin said it first," a source told E! News. The couple didn't just exchange the L-word once, but they reportedly repeated it a few times.

"Everyone could hear them,” a source for Hollywood Life said.  “I guess they want to share their love with the world."

Bieber and Gomez were lost in their love for one another, according to the website.

“Justin’s bodyguard wouldn’t let anyone get to close to them, but that didn’t stop them from showing off their affection for each other. They were just in their own world…dazed and in love!” an insider added.