Motion-centric storylines often place characters in tight, inescapable spaces that force them to interact.

, things inside it can change. Acceleration doesn't always require a change in speed; sometimes it’s just a change in direction." He turned to face her, shifting his

Elena didn't need to turn to know it was Marcus. He was the ship’s navigator, the man responsible for calculating their displacement across the trackless blue.

Exploring Intimacy: A Visual Guide to Sex Positions

Talk about what you're seeing. "That motion looks intense, want to try it?"