Basil I'd say about 95% of the time I get a girl to eject a liquid that isn't just pussy lube. I'm talking up a different substance with a more watery consistency. The girls will be freaked out but when you ask them if they liked it they will say yes.
Houston it might have something to do withe shape of your dick. If you have thick cock it's probably easier for your dick to rub the g because it's stretching the pussy open more and engaging the nerves around the front with a lot of tension. Guys who aren't super thick can get a sense if what this is like but trying to fit 3 or more fingers into her pussy until it's stretching the opening. Even then, though, it's still hard to touch the g because it's located directly behind, or at inside equivalent of where the clit is.
Houston it might have something to do withe shape of your dick. If you have thick cock it's probably easier for your dick to rub the g because it's stretching the pussy open more and engaging the nerves around the front with a lot of tension. Guys who aren't super thick can get a sense if what this is like but trying to fit 3 or more fingers into her pussy until it's stretching the opening. Even then, though, it's still hard to touch the g because it's located directly behind, or at inside equivalent of where the clit is.