Sam Riley on his sex scenes with Kristen Stewart

Sam Riley has opened up about shooting sex scenes with Kristen Stewart.

The pair acted up close and personal on the set of On The Road.

“You achieve a comfort level by pretending. We both have partners, and we were friendly. I’m not actually comfortable doing that sort of thing because I was feeling guilty because she was like, 19, and I was 30. I’m actually more comfortable doing psychotic things than sex scenes. Really, you just hope you get it done as quickly as possible,” Sam told ELLE.