Jenner, 19, and Baldwin headed to New York tattooist Jon Boy on June 16. They were joined by two friends from Hillsong Church, photographer Joe Termini and singer Harry Hudson, reported Ace Showbiz.
The "Keeping Up With the Kardashians" star and both of her male friends decided to ink a tiny white dot on their middle fingers.
Baldwin, meanwhile, inked a lowercase letter "g" behind her left ear. The "g" tattoo is seemingly dedicated to her pastor's two-year-old daughter Georgia who was diagnosed with brain cancer.
"G for Georgia '#georgiaonmymind. Love you both @juliaveach @chad_veach," Baldwin captioned the pic.