What if
"Fascinating..." Spock muttered, a hint of amusement visible on his face, when he saw how similar, yet different, the life of his younger self went.
Of course he still was well in control of his emotions, but when he once spotted himself pressing a gentle kiss to a younger lieutenant Uhura's lips, he couldn't help but feel astonished.
A smile tugged at the corner of his mouth and he briefly felt something inside him, which felt very much like regret.
"Why don't you tell me I'm an attractive young lady, or ask me if I've ever been in love?"
Spock shook his head. It wasn't logical to dwell in the past, even for his human-half.
Still, when seeing young Uhura grasping the other Spock's hand and smiling warmly at him, he couldn't help but think: "What if...?"