Wanting to have sex is not consent.

Getting into bed with your SO, for the sole purpose of having sex, is consent.

You are acting like OP was messing around in bed and never gave consent at all. That isn't what happened here. She got into bed to specifically have sex, but she wasn't wet enough yet.

She wasn't wet, therefore she said "No" until she got more wet. He went for it anyways, meaning he did so when she wasn't comfortable with it.

Sure. And?

She gave consent to have sex, but she wanted to be more wet first. Like I said before, this is an issue with lubrication and foreplay, not consent.

Even if she had initially consented, it's an ongoing thing. Her saying no should've stopped everything in its tracks and returned to whatever she was willing to go for.

He had consent to have sex. She wanted to wait until she had more foreplay/wet.

Again, an analogy since you don't seem to get it.

If I get into bed with my girlfriend, for the purpose of having sex, and while we are in bed I ask her to suck my cock first. Instead of sucking my cock, she climbs ontop of me and inserts. That is fine. That is not a consent issue. It's a foreplay issue.

The conversation after that should be about "I don't like how you jump straight into penetration, I would like more foreplay before sex" and not "you raped me I didn't give consent". You are mistaken this as a consent issue rather than what it really is.

Consent is important, you have to get consent, but that has nothing to do with your partner not giving you enough foreplay/wetness prior to penetration. Your preferences are not the same as consent.