Mmm, not only do we love catching a glimpse of Rob Pattinson every now and then, but put him up in a tree with funnyman Jimmy Fallon and it's even more entertaining!

Last night Rob appeared on Late Night to promote his new flick (Remember Me, in case you've forgotten) and Jimmy looked like he was going to pee in his pants when he got Rob to utter his favorite word. Click the video above to see the hilarousness!