Credit: Joe Scarnici/Getty Stringer

Okay, okay. Age is just a number. We know. But there are numbers and then there are numbers. And we think the situation definitely fits in the latter category when it comes to 39-year-old Joaquin Phoenix and his 19-year-old girlfriend, Allie Teilz. (She was 11 when Walk the Line was new, to give a little perspective.)

The two were seen looking cute and cuddly over the weekend in Rome, Italy, wearing matching black All-Star sneakers as they toured the Eternal City. Will their love prove as everlasting? Hard to tell but Joaquin isn’t exactly known for keeping the same gal pal around for long. Blame it on his popularity with the ladies.

“Girls are just fascinated with him. They seek him out,” a source tells Us Weekly. “There is a lot going on there, as you can imagine … It’s not the typical girl that wants to be with him.”

Allie fits the Joaquin type well as she’s not exactly typical. The up-and-coming DJ first started performing in New York City at just 16 years old, flying to Las Vegas over the weekend for various gigs before heading to school Monday morning.

I had a complete double life and lied about my age, obviously, but I was really getting involved in the music world and starting to meet people,” she told Bullett Magazine, in which she also posed sans shirt. “It wasn’t a good world for me being as young as I was.”

Young as you were? How about as young as you are.

Sources: Us Weekly, Bullett Magazine

Elisabeth Kramer is an Assistant Editor at Wetpaint Entertainment and our resident Downton Abbey expert. Follow her on Twitter and Google+!