Rory's sexuality is basically laser guided. There are two points in his life when he'll seriously look at someone who isn't Amy for sex (in RP). The first is an AU with Rory as a teenager in a timeline when Amy Pond doesn't exist. The second is a slightly heartbroken Rory between Pond Life and the end of Asylum of the Daleks - in other words when they are getting divorced.

His kinks are relatively simple and mostly stem from his positive self image as the only adult on the TARDIS (or at least one of the aduts in the room). When topping it's mostly about cutting loose for him even if as RP; he likes spanking his partner, roleplaying involving light force (himself as a soldier taking (willing) advantage of a captive of war being a favourite), and anything else along those lines. When the bottom, put him in positions where it isn't possible to be responsible. Light bondage/blindfolds and light humiliation. Dressing him up (cross-dressing works well). And anything else that means he's either obviously not responsible or not able to be responsible.

Some days nobody died. And those were the days that Rory had time to catch up on his paperwork - which was why he was one of the very few senior nurses not to object. He realised how essential it was. And if he was actually doing it in office hours it meant that it was a good day, however tedious the process of paperwork was. Better that than not getting paid. Suddenly the door of his office, left deliberately ajar, was thrown wide open.
( Cut for length )