Luke Grimes, star of 'Yellowstone,' and his wife, Bianca Rodrigues Grimes, are expecting their first child. Bianca shared the news on Instagram with a mirror selfie showcasing her baby bump, captioned 'Can't wait to meet you little one.' The couple, who have been married since November 2018, have maintained a relatively private relationship. Luke has expressed his deep love and commitment to Bianca, often referring to her as an 'angel.' Bianca, originally from Brazil, learned English by watching 'The Office' with subtitles, which Luke credits for helping their relationship flourish. No further details about the baby's due date or gender have been disclosed.