Blueface's GF Bonnie Gets Butt Tattoo To Counter Chrisean's Face Portrait

Chrisean Rock isn't the only one of Blueface's baddies dedicating their bodies to his mug shot while he's locked up -- there's another gal doing the same ... only lower.

On Wednesday, his admitted side chick, Bonnie, debuted a HUMONGOUS tattoo of her own -- which was being done on her ass. Indeed, she posted pics and video of herself lying down with her pants dropped and her booty with BF's mug stenciled onto her left cheek.

Bonnie's an OG cast member of Blue's "Blue Girls Club" -- his short-lived reality show -- but her cheeky ink seems to have even surprised her close friend group ... 'cause they're saying she's a fool. Nevertheless, she's been doubling down all day, professing her 💙 for Blue.

We should note ... Bonnie has beef with Blue's other girlfriends/baby mamas -- including Chrisean and Jaidyn Alexis -- and basically all the other women in BF's life. That seems to be why she's doing this ... almost as a way to "stick it to them."

With this move, Bonnie appears to be trying to plant her flag on Blue -- with the message being ... he's all mine, once he's released from jail in a few months, of course.

Probably worth noting ... Bonnie just released a new track titled "That's My Daddy" ... and it's a diss to all her competition with Blueface -- and just further confirmation that he has her on lock, just like all the other ladies in his orbit, it seems.

TMZ Hip Hop just confirmed with Chrisean's tattoo shop that her newly planted "Blueface" is indeed permanent ... but like Bonnie, her own family thinks she needs to step aside.