Another indication that these two are an item is on Instagram where Kylie just changed her moniker to King Kylie in homage to Tyga's username, King Gold Chains.
While the 25-year-old rapper -- who has a child with model Blac Chyna -- insists he's just "friends" with Kylie, he has admitted his feelings for her. "I speak what I feel in my heart," he told Hot 97 in February. "I love her and I love her as a person."
Check out the rumored couple's cozy trip to the grocery store, below: