Insiders claimed that the 'We Found Love' singer invited Tempah as she is keen to work with him at some point, a prospect that the two artists allegedly discussed over a meal on the boat.
A source told The Sun: "Rihanna loves Tinie's music and is fond of him as a person, too. She's very keen to work with him at some point, which was discussed at length over dinner.
"Obviously, eating took up a small part of the night as he joined her crew on yet another wild night. It won't be one that he will forget in a hurry."
During her yacht trip, Rihanna spent time in the south of France, before moving on to Portofino on the Italian Riviera.
Watch the video for Rihanna's 'Where Have You Been' below: