The 25-year-old singer and actress appeared to confirm her reconciliation with Bieber at the 23-year-old star's match Wednesday in Los Angeles, according to TMZ.
Gomez was seen smooching Bieber during a time-out in the game. The actress leaned over the rail to put both hands on Bieber's shoulders and plant a kiss on his lips.
E! News reported Gomez brought along her Cavalier King Charles Spaniel puppy, which sources said was a gift from the actress' ex-boyfriend, The Weeknd. Gomez and The Weeknd recently called it quits after 10 months of dating.
Gomez and Bieber reconnected in October after splitting in 2014 after several years of on-again, off-again dating. The pair were spotted hanging out several times before news of Gomez's split from The Weeknd broke.
"He is waiting for Selena to tell him that they are officially back together," a source told People this month. "He doesn't feel any rush, because no doubt they are already emotionally back together."
Gomez will perform Sunday at the 2017 American Music Awards, and shared a video of herself prepping for the awards show Wednesday on Instagram. She performed an emotional rendition of "The Heart Wants What It Wants" at the 2016 ceremony.