When daddy is away hosting wild and crazy parties in Las Vegas, son will play...
... with Justin Bieber!!!
The singer apparently spent Saturday afternoon hanging with Scott Disick and Kourtney Kardashian’s first child, as Kris Jenner posted a photo on Instagram of Justin and little Mason Dash.
"#Mason & @JustinBieber family pool day!!!" Kris captioned the image. "#Bestbabysitterintheworld."
Bieber, of course, is pretty tight with the Kardashian-Jenner clan.
He is featured in the latest issue of Vogue, getting some fun with Kendall Jenner and also getting felt up by Kendall Jenner.
Justin also shared this picture on his social media account, writing of the tyke climbing all over his back: "Mason is cool as a fan."
Remember, Kourtney was actually neighbors with the pop sensation before Khloe Kardashian chose to purchase his Calabasas house. Hence the relationship between Bieber and Mason.
Kendall, meanwhile, recently referred to Bieber as a "longtime friend of the family."
And with Kourtney possibly on the outs with Disick, one has to wonder: Might she hook up next with Bieber?