He told Variety: "It definitely doesn't feel like 10 years ago. I feel like I stopped mentally progressing around the time when I started doing those movies, so it feels like not a day has passed."
Kristen - who dated Robert until 2012 - previously admitted to feeling similarly about the money-spinning film franchise.
Speaking earlier this year, the 28-year-old Hollywood star - who played Bella Swan in the 'Twilight' movies - said: "It has been a long time. I don't know, it is funny. I have also lived in the same neighbourhood for 10 years and I thought about that the other day, and I was like, 'Oh god, you know, a decade ago it wasn't as crowded, and I was like, that is bizarre to be able to say that.'
"Certain things, certain memories will be close to you forever."
-Bang! Showbiz