In Pizza Girl, though he has a crush on Maria, he suggests Stella is jealous, though she denies she is.
Joseph Adam "Joe" Lucas is one of the main protagonist of series and is one of the members of the band, JONAS.Joe may be hinted to have an innocent crush on Stella Malone (he admitted that he put the pudding in her purse and earlier he told her that guys do mean things to girls they like), although he teases her.By the end of the episode it is revealed it was Joe who put the pudding in her purse, but when Stella asks him if he has a crush on her, he hurries away to perform.In Frantic Romantic, when Fiona Skye is harrassing Joe, Stella agrees to be his fake love interest, but when Macy suggests they kiss, they both refuse to do it.In Season Two, Joe is more focused on his acting career, auditioning for a part in a movie opposite Vanessa Page, and getting it and he is a cuteie Joe loves to prank his brothers. She also has feelings for Joe and hopefully in the future they will be more than best friends. Also at the end they kiss again, hinting to Nick and Kevin that they are a couple.
Stella and Joe have been best friends since they were young, though their relationship has always been a platonic one until recently.