Twin Bears

Bear 1: I can't bear this anymore...
Bear 2: Can't bear what?
Bear 1: Being stuck to you forever.
Bear 2: What're you talking about? We're IVF twins.
Bear 1: IVF, not conjoined.
Bear 2: So?
Bear 1: I'm starting to lose my bearings...
Bear 2: Barely. Just grin and bear it.