What was their first kiss like?
I have thought about this extensively and I will tell you my favorite option
Jim spends weeks, months, maybe even years seducing Sebastian. He is very, very patient. But he wants Sebastian to come to him. He wants Sebastian to know that he broke first.
So he waits. And he watches. And he teases. Incessantly. And then, finally, one day, they’re in the kitchen eating takeaway. Jim is doing some weird sensual tongue trick concerning licking his fork. Sebastian cracks. He gets up rather violently, and before Jim even gets the chance to taunt him, he grabs him by his tie, knocks the fork out of his hand, and snogs him.
Where was their first time having sex?
It came right after the scenario above.
It was actually in Jim’s bedroom, though they were both pretty close to fucking on the kitchen floor.
Excluding that Jim is almost always awake, Sebastian gets up ungodly early every morning — military discipline — at like 5 or 6 AM. If Jim actually does sleep, he will sleep well into the day, by which time Sebastian will be showered, fed, and possibly done with a job.
Who performs/receives oral sex more often?
Despite the fact that Jim is probably more experienced, he fucking loves seeing his Tiger on his knees. It turns him on like nothing else. Watching a powerful, masculine man like that get down on his knees to suck Jim’s cock. You have no idea what that does to him. The power rush almost makes him dizzy.
Who tries new things more often?
Sebastian lives in constant concern for the crazy things he comes up with — although, of course, he’s nearly as kinky as Jim, so ultimately it usually ends up going well.
If they had to choose a third+ person, who would they include?
Jim would argue strongly for Sherlock.
Depending on the Sebastian, he would either be game or incredibly opposed. Also depending on the Sebastian, he might suggest Adler. But Jim would noooot be about that.