The pair was caught frolicking on a Malibu beach together, and from the look of things, it appears that the two have become quite close. So close, in fact, that it's now rumored they may be dating.
To get a glimpse of the actors' ocean rendezvous and judge the situation for yourself, check out the paparazzi shots here.
Do you think Miller and Monaco are dating? If it's true, do you think they make a cute couple? We want to hear from you -- and there are many ways you can share your thoughts.