What do you get the person that has everything? A billboard, according to the celebrity significant others shelling out for massive public displays of affection.

Kylie Jenner recently bought her boyfriend and father of her child, rapper Travis Scott , a black and white billboard for his upcoming 28th birthday on April 30.

Happy birthday daddy, the billboard read. Love Mommy & Stormi XO.

The two previously celebrated Scotts birthday early with an Avengers-themed party that included some insanely elaborate costumes .