Prince Harry was seen on another date with his girlfriend Cressida Bonas.

The couple, who have been dating for eight months, was seen leaving the Caribbean theme bar the Rum Kitchen, In Notting Hill West London on March 15. The couple reportedly arrived at the hot spot at 10 p.m. and exited around 1 a.m. separately, about 30 minutes apart. They were casually dressed for their date - the prince wore a gingham check print shirt with a vest and blue jeans, and Bonas wore a black cropped military style jacket, grey jeans and suede Doc Martens.

See photos here.

The couple was joined by one of his royal family members, Princess Eugenie, and his friend Tom Inskip. Eyewitness revealed that the group of four drank rum cocktails and danced to reggae music.

"They looked very much like a couple. They were very affectionate," and onlooker told Mail Online of Harry and Bonas' PDA. "They were hugging and they kissed a few times. It was very sweet."

The source said Bonas, who is a dance student, along with the prince showed off plenty of moves on the dance floor.

"The music is loud so it was quite lively. There are no tables or booths so everyone was dancing, including Harry and Cressida," said the source. "Cressida looked amazing. She's a professional dancer and her training was very obvious... Harry was also getting into the swing of things, but next to Cressida some of his moves were more like amateur limbo dancing, but it was all taken in good heart."

Prince Harry and Bonas had openly displayed public affection during a family ski trip in Verbia, Austria last month. The couple was seen hugging and kissing at a Verbier ski resort and at the Pot Luck Club restaurant during an annual ski trip to celebrate the birthday of his uncle, Prince Andrew.

They are rumored to have begun dating in May but did not go public with their relationship until they attended the London premiere of Dark Knight Rises together.

"They are definitely dating, but it is not serious," an insider told E! Online. "They have known each other a while, but only recently has it turned into more than friendship. They are not exclusive though, just having fun."

Bonas is a model for fashion brands including Burberry and is considered a "blue-blooded socialite." She is the daughter of Jeffrey Bonas, an entrepreneur, and Lady Mary-Gaye Curzon, the daughter of Earl Howe VI.