Meghan Markle
Meghan Markle attends the Elton John AIDS Foundation's 13th Annual An Enduring Vision Benefit in New York Oct. 28, 2014. Reuters

Meghan Markle, 35, joined her boyfriend, Prince Harry, 32, in Jamaica Thursday, ahead of the young royal's best friend's wedding the coming weekend, a source told Us Weekly. "She kept it secret," said the source to the publication.

The prince arrived in Jamaica Thursday to attend the wedding of his best buddy, Tom “Skipp” Inskip, to literary agent Lara Hughes-Young. Jamaican sprinter Usain Bolt will also join Prince Harry, his 'favourite prince', who beat Bolt during the royal's last visit to Jamaica when he represented the Queen, as was reported in Daily Mail.

Markle and Harry are ready to take their relation to the next level, one of their friends told Us Weekly. "They will be engaged by the end of summer," he said. The couple has also openly spoken about their future.

Currently, both of them stay at different locations — Markle is based in Toronto and Harry is in London at Kensington Palace. The couple are not planning anything concrete about living in together until Markle wraps her shooting for "Suits," Us Weekly reported.

“Meghan feels a move to London is inevitable,” the source told. “It’s not like Harry can uproot!”

Earlier this year, the couple travelled to Norway for a romantic getaway after spending New Year’s Eve together in London.

The "Suits" star has been mostly staying at her "home away from home" in Kensington Palace home, Nottingham Cottage, since late December.

"All the security know her, she slips in and out whenever she likes," a source told Us Weekly

The couple also like to keep themselves low-profile. They spent their first Valentine's Day this year at home, choosing to spend the romantic holiday together.