I know women are different from one another, but I'd like to know some basics on how I make my girlfriend have an orgasm during penetration.
Is there any movement that intensifies the pleasure?
Give a single deep thrust and hump further forward like you still had an inch or two to insert, pulling out as little as you can. This will really pressure her clit
With my gf we sometimes try to just stand still when I'm inside. Protip: it's impossible, but feels awesome to try.
Girl always cums after penetration for a few minutes then put her on top and have her rub her clit up and down on your pubic bone area while you are deep inside her and controlling her movement. Think of it like you're rubbing her clit with your body while being inside her and screwing her without much in and out action.