Kinky sex goes wrong

[patk.livejournal.com]

I'm looking for McShep-stories where they try any kind of more or less kinky sex games but things turn out to be way less exciting than fantasizing about it or it actually goes wrong. For example: they try something with John tied up but John realizes he can't stand it and wants to stop because of his experiences with being captured/tied up by enemies. That's just an example, of course, it can be anything that fits the bill of "kinky sex goes wrong" as long as it's John/Rodney.