I am totally into all what you've listed Ghagiel.
I love the idea of two guys finding each other and not having any concept they were gay. Very cool, especially in a college setting. Like roommates or frat brothers.
The second one sounds great as well and has amazing potential for character development.
I do have a major hankering for a medieval RP though
I'm interested in a game that has multiple characters played by 2 people, but perhaps we could start out with just one set. It has the same concept as your #1 idea...a relationship awkwardly blossoms. Of course this is all within a PG13 context
What I saw as potential interactions/relationships were:
King Arthur - Sir Lancelot
Sir Tristam - Galahad (Lancelot's son)
Sir Hector (Arthur's foster father) - Sir Gawain
Other characters that will probably appear:
Sir Mordred (Arthur's illegitimate son)
The information from where I gather is http://en.wikipedia.org/wiki/Knights_of_the_Round_Table#List_of_Knights