How do you show your baby daddy you really love him? Get a giant tattoo of his face on your body!

On Wednesday, Amber Rose made a brave (and very, very permanent) declaration of love for her fiance Wiz Khalifa ... she got his face tattooed on the back of her arm.

The blonde shaved-head beauty tweeted, "True love #Cam&Amb : -)," along with the photo of her brand new ink.

What makes this tattoo even better, besides the fact that she now has Wiz's face on her body ... forever, is that the model chose one where the "Black & Yellow" singer clearly looks stoned.

All is fair (game) in love and hip-hop, right?

What do you think of Amber's new body art? Sound off below and click "Launch Gallery" above to see more girls with tattoos!

Maybe next, Kim Kardashian will get Kanye West's face on her body! Ah, wishful thinking.