Rachel Bilson enjoys the beach in Barbados on June 9. Credit: PRIMADONNA/GEMAIRA/Splash News

Another black bikini, another day on the beach! Rachel Bilson spent yet another day in Barbados with beau Hayden Christensen on June 9, this time wearing a black string bikini, with her baby bump on full display.

The pregnant Hart of Dixie star, 32, carried pink snorkeling gear and a noodle for her beach excursion.

After playing in the water, the mom-to-be covered up in a blue button down tunic while she gave her boyfriend of seven years a neck massage.

The parents-to-be have been enjoying each other's company on the island for weeks now, soaking up the sunshine and frequenting local food spots like Cuz Fish Shack, where Bilson indulged in her pregnancy cravings with a sandwich and an orange soda on June 1.

Us Weekly exclusively revealed the couple were first expecting last month. "They've both talked about this for awhile and are so excited," a Bilson source told Us.