My LTR has complained that I don't notice signs she is giving me when trying to initiate a fuck, and I do enjoy when she initiates it. Now it would be great to get to know some general signs that a girl wants to fuck me right now, and while I would prefer her just telling me, I guess learning how to notice it may be useful later on too.

That said, I sometimes miss really obvious hints in general, so don't be afriad to point out basic things.