embarrassing photo of Kristen Stewart

Twilight star Kristen Stewart acknowledged the pressure of living up to the series’ fans’ expectations.The actress describes filming sex scenes with ex-boyfriend Robert Pattinson as “grotesquely uncomfortable.” K-Stew says they had to produce the most epic sex scene ever. That rhetorical question has no answer for K-Stew; the feeling of inadequacy “sucks” because she wanted…