Kristen Stewart is usually cagey about her sexuality in general, but the actress got straight-up explicit in a new interview.

When discussing her budding screenwriting career, Stewart, 28, told Mastermind magazine (via People), “My favorite line in this movie I’m currently writing is, ‘I thought about Sienna Torres and her shoving her hand into my wide-open c—t, about as wide as a mouth saying motherf—-r.’ ”

“That’s not something people would be comfortable hearing, up until right now, but I think it’s the perfect time,” she added. “There’s nothing dirty about it, but I’m definitely going to be vulgar, and I’m definitely going to be completely unabashedly open about the fact that we’re entirely sexual beings.”

Stewart explained, “Right now, I’m so aware of the fact that we’ve watched, cinematically, men and their way into their bodies and do physical things that feel fundamental to this male perspective. In every coming of age story we see about a young girl, even if it’s the truest, most sincere thing, what’s lacking is the physical honesty of actual female experience and the way we discover our bodies. It’s like we’re scared of using certain words.”

As far as her own bedroom habits, however, Stewart, who’s dated both men (infamously including her “Twilight” co-star Robert Pattinson, on whom she cheated with director Rupert Sanders) and women (she was most recently linked to model Stella Maxwell), wishes to maintain an air of mystery.

“Yeah, ambiguity is my favorite thing ever. In terms of sexuality? For sure,” she said. “And also in making films, if you perfectly answer every question, you don’t allow for people to have their own experience and really indulge a thought. I feel the same way about how we f—k each other. You don’t want to know everything all the time.”