Sif had lived countless years, she had lived through ages - not a hyperbole, actual ages - and amidst the numerous things she had had to consider and adapt to, switching genders had never crossed her mind. There were no contingency plans in the back of her mind, and thus none to offer the Captain. She could imagine it was as off-throwing to him as it was to her, in any case. Noticing the sudden heat rising to the Captain's face, Sif's brow furrowed in worry. "Are you well?" She felt his forehead with the back of her hand. "Within reason, I mean."

The way his hair fell over his face as he nodded made Sif's lips curve slightly into a smile. "Remind me to lend you a hair-tie." She told him. Upon his final and verbal admittance to being who she thought he was, Sif's smile grew, and she squeezed his delicate shoulder again with the hand already on it. "Oh, Captain." She sighed in sympathy. "This provides you no comfort but you are as impressive in your lady's body as you are in your man's one." It needed to be said.