Gwyneth Paltrow recently shared a bikini photo of herself sunbathing with her son, Moses Martin, just days after he revealed his relationship with his new girlfriend. Paltrow, 53, posted the selfie on her Instagram Story on Monday, showing her alongside her 20-year-old son, whose father is Coldplay frontman Chris Martin.

Paltrow wore a red gingham bikini top and aviator sunglasses while relaxing on a pool lounger. A copy of Colm Tóibín's novel "Long Island" was visible between Paltrow and her son. Martin, dressed in a white T-shirt and grey shorts, looked toward the camera.

This appears shortly after Martin, a model and musician, publicly introduced his girlfriend, Campbell Fealy. He posted a series of photos celebrating her 21st birthday, including one with the caption, "Favorite person's Birthday," and another saying, "I love you big time."

Fealy is a first-year student at Brown University, where Martin is a second-year student. She is the daughter of Dr. Stephen Fealy, a prominent New York sports medicine surgeon, and Kristen Gesswein Fealy. Dr. Fealy previously played baseball for Columbia University and consults for the Major League Baseball Players Association. Kristen Fealy is known as a mah jongg teacher.

Fealy is a first-year student at the Ivy League's Brown University, where Moses is in his second year, and the daughter of one of New York's most prominent sports medicine surgeons

Fealy is also an accomplished student and athlete, having competed in Varsity Track and Field at Middlebury College before transferring to Brown. She also completed a public relations internship at Balenciaga in New York.

Martin has been stepping into the spotlight with his own career pursuits. He made his red carpet debut with Paltrow at the premiere of her film "Marty Supreme" late last year. Earlier this month, he was announced as the new face of Burberry for their "Escape to the Countryside" campaign. In May, he released his debut EP, "Bunny," with his band People I've Met.

Moses made his red carpet debut at the end of last year with mum Paltrow at the Los Angeles premiere of her film Marty Supreme in December

Martin is not the only child of Paltrow and Chris Martin to gain public attention. His older sister, Apple, 22, graduated from Vanderbilt University in May and has been building a modeling career, most recently appearing in a campaign for Chloe.

Paltrow and Chris Martin were married from 2003 to 2016. Paltrow later married television producer Brad Falchuk in 2018. Chris Martin was in a long-term relationship with actress Dakota Johnson.