[quote=@Spud]
 That "Alright I'm going to bed now" is the best comeback ever though x'D will totally use that one in the future if you dont mind me robbing it!
[/quote]

It was my only way out of the conversation without a super awkward explanation as too why I was not interested in sleeping with her, as she was attractive well, is. Though anyway it probably mainly worked as we were staying in the same hostel... and my bed was like ten metres away from where we were standing.

My rule is, always play it oblivious. Then they can't get offended and just think you're a fucking retard.