"Y'know...you have really long eyelashes. It makes your face look feminine."
Usopp is taken aback at the sudden remark, his eyebrows furrow in confusion, not fully processing Sanji's words. The expression doesn't faze Sanji, he's smiling that smile he gets when he's proud of himself – Usopp can see that he's enjoying his discomfort. Having never been this close to Sanji before, Usopp's heart nearly stops when he advances on him. He feels his face being pulled upward until Sanji's face is about three inches from his – his knees are shaking uncontrollably and he curses himself for not being braver, at least in a situation like this… The grin on Sanji's face widens and he pulls himself back away from the sniper, cocking his head to the side.
"Relax." His voice is playful, as soothing as ever, and Usopp can't help but loosen up a little. "It was just a simple observation." Sanji continues.
The cook takes his thumb and rubs it across Usopp's eyelashes, with a loving laugh he takes his hands away and shakes his head in amusement; it's very different from his usual mocking tone…but a good different.
"It's just rare that a man has such long eyelashes."
Usopp watches the other boy walk away, his laugh fading as Sanji giggles himself out the galley door. He frowns to himself and feels his fingers over his own eyelashes, "They're not that long." But Usopp can't lie to himself – he's happy to have Sanji notice.