I don't understand the difficulty the girl with long black hair has. Just tell her what you don't like and what you do like. If she doesn't know how to make you cum, give her advice. This reminds me of the stupid trope in manga where a character thinks they are a fantastic cook. But everything they cook comes out looking purple, glowing, and has bones and egg shells sticking out of it. It's a way to illustrate that it tastes terrible. And then all of the other characters that eat it, pretend that it tastes good. They gaslight the bad cook into thinking that they are a talented chef. So they never get any better. It's such an overused and stale joke. They justify it by having the other characters' motivations be that of not wanting to hurt their friend's feelings. It's a false choice though. There are more options then either gaslighting them or harshly criticizing them.
In life, we are constantly presented with a false choice between only two bad options. There is always a third option that someone doesn't want you to know about. There is a way to gently teach someone without destroying their self esteem. The long black haired girl is lucky that her girlfriend randomly stumbled upon a technique that she liked. Why would you live your life this way? You have a mouth. Tell her how you feel.
@Frygon Wow. The original looks much better. Before I clicked your link, I mistakenly thought the author just sucked at shading. It's really distracting. Is this just a poor quality scan, or did someone think it was a good idea to add all of this ugly and out of place gray smudges?
@randalthor20001 It's not that easy. I've been with my girlfriend for about two years now and I love her to death, but I have the same problem as the black-haired girl. She just... sucks at it. And the problem is that I've tried telling her what to do and how to pleasure me but she always slips back into her old habits and what she feels works for her. I don't think it's on purpose, but having to constantly tell her to speed her fingers back up or lick a certain area kills the mood because it just makes me vigilant. I can't cum and be vigilant about keeping her on track. So instead of telling her she's just not very good at it and that I have to keep her on track too much, I decided to just pleasure her and forget about myself entirely. I never really cared about getting off, anyway. I used to come on here and use the yuri manga to jill off, but even that I've kinda lost interest in. So I'm content making my girlfriend happy and leaving it at that. But I'm sure there are plenty of other girls out there who aren't as passive as me.