Oneword: Flirt

John had to wonder sometimes if Sherlock even realized what he was doing. When he had insisted that John's date with Sarah was the same as what he had suggested, had he intended that as a flirt? When he grabbed at John's temples, or stood too close in his personal space, was it due to a sense of comfort, or a desire for something more?

Not wanting to push either way, John decided to leave the flirtatious behavior unmentioned. He didn't mind that much, after all.