Women are all different. My girlfriend of two years never initiates it and claims to be "not interested in sex at all anymore". Luckily she habitually sits around on the couch dressed in nothing more than a tee shirt, giving me ample oportunity to casually stroke her ass, even stroke her pubes but she rarely responds sexually.
She hates talking about sex, it always has to be spontaneous, never planned. Basically, initiating sex often consisted of softly trying to pull her legs apart, if she resisted, nothing was said, there was no "pervert" from her no "frigid bitch" from me, we just got on with our evening. if however she let her legs part I'd bury my face between them and 30 seconds later she'd be begging to be fucked.
Recently the dynamic has changed a bit. She's rather less likely to part her legs but i'm rather more likely to pull them apart a little more forcefully and give her rather longer and rougher oral session leaving her really begging to be fucked. roughly. and held down...
It's weird after two years to still have this negotiation. I'm rather more used to women who will let a cuddle or a kiss just escalate into a fuck but with them, the fuck was never as good as with my current girlfriend but at least it didn't feel like it was headed into rape fantasy territory...
And then there was my marraige... a horrible little verbal communication: "do you fancy going to bed early?, no?, how about tomorrow?, cool" which is fucking shit and should be avoided at all costs.