Is Selena Gomez back with Justin Bieber for good???

Selena Gomez has been making a lot of heads turn these last couple of days!

Last week she posted the above pic showing off her curves in a very sexy, yet discrete way.

Selena Gomez continued her new sexy trend by posting another photo yesterday, while hinting at a "secret project" -- See below.

If that wasn't enough to throw you off, today she posted a picture of what looks like her in the studio… With Justin Bieber?!!

The only reason I would say this isn't a picture of Bieber is because he just got a full sleeve tattoo on that arm, so it probably isn't him. Either way, I DO believe that they're working on something! I'm just not sure what yet… Stay tuned.

All images are via instagram