Id feel uncomfortable, and would stare...but im not sure why really, as (like people have said) its just like a straight couple getting off, but I think the 'issue' is more to do with how exposed we are to gay relationships, I certainly havent seen many gay couples walking about holding hands, either in real life or in the media...so it is still a 'novelty' to me.
I think the reaction that followed a dull kiss between Todd and Karl on Corrie summed up the fact that British society in general still percieves homosexuality as quaint and unusually (Id like to point out that I don't think that Britain is instituationally homophobic though!)