Selena Gomez met Justin Bieber's family in Toronto, Canada on June 1, after over a week of steamy romance that started with a very public kiss at the Billboard Awards and rapidly progressed to a passionate butt grabbing spit swap in Hawaii.
The young couple and the Bieber family visited a local park on Wednesday, where Selena was spotted playing with Justin's toddler half-siblings, Jazmyn and Jaxon, as Justin's father, Jeremy Jack Bieber, happily clicked photographs.
Justin and Bieber belatedly celebrated Jazmyn's birthday with the day out.
"They looked like one big happy family," according to an onlooker. "The little kids took to Selena straight away and they were all laughing and joking around. They couldn't have been happier."
Later, the family lunched at Swiss Chalet, and went out for ice cream.
Before arriving in Toronto, the couple spent time with Selena's family in Texas.
Justin's biological mother Patricia Lynn "Pattie" Mallette became pregnant with him when she was 18 years and raised Justin as a single mother doing low-paying office jobs.
Jeremy is married to another woman.