I think they have a very thin line to tread. Do you know, while messing about on the Internet, I came across a message board from after S1 in which someone actually said "I hope they give Jack and Ianto girlfriends in S2 because that kiss in End of Days was sick" !!!!!! And while there were quite a few "er...what?!?" responses there were also quite a few which said "Well, they can have J/I if they want but they should keep it in the background - definitely no kissing." Anyway, I don't really have a point to make with this, except just !!!!!!