Title: Stamina
Fandom: X-Men (Movieverse)
Pairing: Darwin/Alex
Rating: NC-17
Words: 498
Timeline: X-Men: First Class
Notes: For fan_flashworks, prompt "health and fitness".
Summary: Darwin's powers means he adapts to all sorts of things, as Alex finds out to his frustration.


( “You can’t keep up with me,” Darwin says, and he’s got that usual laidback smile on his face, not really teasing, just telling it like it is. )