Justin Bieber & Pal -- Double-Team Topless Stripper ... Ain't No Fun, If the Homies Can't Have None

Say this for Justin Bieber ... at least he shares ... even when it comes to strippers' boobs -- as seen in this photo of Justin and his pal Khalil Sharieff sucking on one breast each during a recent party.

Click here for info about our online advertising practices.