Starter but need a male John for this one

Sherlock stood as still as he could while John and Mary gave their wedding vows. John looked genuinely happy, as much as Sherlock could look at him, and even Sherlock smiled just a bit when they put on their rings and looked at each other before kissing. Sherlock's body was a shell though, he felt that everything inside had died and he could no longer feel anything about what's happening. He somehow bore through the whole thing, mostly disconnecting, only connecting when his services as best man were needed. His face was emotionless as always most of the time. He glanced over at Mycroft at the crowd who just looked disapproving and displeased. When the ceremony was over, Sherlock managed to not run away or get lost between the wedding and the after party that was in a nearby hotel's ballroom. Though he just sat down with a half-drunken glass of scotch and a used paper umbrella in his hand, not looking up.