While walking and talking with her hunk, the 21-year-old actress could be seen holding a book of what looked to be home appliances in her hand along with the drinks.
Could the young lovebirds be taking their relationship to the next level?
Meanwhile, in her next project, Rumer will appear with Kristin Cavallari of The Hills in an independent film called Wild Cherry, which will be released later this year.
Miss Willis has also been signed on to star in the film Walks starring Lucas Haas, Brittany Snow, Emmanuelle Chirqui and Jessica Szohr.
And she is among a host of celebrities set to make a cameo appearance on the upcoming season of the hit CW show 90210.