i think a lot of the conversation around cadonis revolves around the fact that he is the least interesting of the bunch, and the added attention upon him does him no favors. everyone else's character comes across a bit complex - while cadonis is the jock who thinks every girl wants to sleep with him, and that's all he is.
added caveat, i played around the game twice, and have to say, none of the sex options appealed to me that much. there's the taxman at the bar who forces himself upon you, and the cheating sex wasn't worth very much. granted, this is just the prologue, but i was hoping for a libertine encounter that our girl can simply enjoy.
speaking of which, is there a origin where you aren't a prude/virgin? i chose the theater one cause that one seemed the closest, but it didn't seem to be the case