[It's a little strange to hear the signs of attraction compartmentalized into a neat little list of symptoms, but it's such a Sherlock thing to do. John can't help but feel the small flood of warmth in his chest as he considers all he signs in relation to Sherlock. He's definitely championing the physical closeness and had already shown that he was more aware of what John's lips were doing than John himself was. And then there's Sherlock's eyes - the tricky, grey-blue-green iris nothing but a tiny ring now in contrast to the wide pupils. John unknowingly wets his lips yet again looking at them.]
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And your pulse...?