I’ve witnessed my lover squirt while performing separately cunnilingus and G-Spot (Urethral Sponge) massages for her pleasure. They weren’t extreme spurts but only a few drops of ejaculate; however, they were definitely detectable and the fluid was NOT urine.

There are several articles on squirting but here’s one from askmen.

Make Her Ejaculate or Squirt

Female Ejaculation
by David Strovny

Even women who have never ejaculated can be surprised when they find themselves covered in liquid.
No, it’s not an urban legend. Or even a Yeti or Bigfoot. Female ejaculation might be elusive, but making her squirt is not impossible. You just have to stroke her the right way.

Women who are more in touch with their bodies and their sexuality may know what makes them squirt, and you may be fortunate enough to have them do it all over you. Then again, there are other women who have never experienced an orgasm (much less ejaculated), so they might need a little more help. But that doesn’t mean it can’t be done. Even women who have never ejaculated can be surprised when they find themselves covered in liquid after being brought to the heights of ecstasy.

Make Her Ejaculate: The Basics
A woman’s ejaculate is expelled from the urethra, the same place where urine comes out, not the G-spot, as you might think. It’s a clear fluid, not related to urine at all. But if your girl doesn’t have control over her PC muscles she might just pee all over you. And if she doesn’t she might feel like she’s going to. Should she feel like she may urinate, don’t freak out. It’s normal for her to feel like she’s going to pee. If you make her nervous, she’ll hold back and not ejaculate at all. She has to relax and completely let go. If she does end up peeing a bit and you go crazy on her, she’ll never do it again. Make peace with a possible golden shower. Who knows, you may even like it.

Make sure she wants it
If your girl is inhibited you can work her G-spot all you want, but if she’s not ready to open up she’s not going to come. The feeling might even annoy her since it will make her feel like she’s going to pee. So make sure she’s ready and willing to get wet.

Ready, set, go
While stimulation to any number of erogenous zones can make her ejaculate, the best way is to manipulate her G-spot. Of course, just don’t go straight for the goods without warming her up. Women are less like microwaves and more like ovens when it comes to heating up. Start off with foreplay; lick her clitoris, play with her breasts, get her ready for the next course. Once she’s aroused, insert two fingers into her vagina with your palm facing up. If you’re good at multitasking you can keep licking her clitoris too.

Approximately an inch or two inside her vagina, you’ll feel a round spongy patch; that, my friends, is her G-spot. Move your fingers in a come-hither motion. In other words, pretend you’re motioning for someone to come over with two fingers instead of one. It may become solid, which is a good thing. It means she’s getting seriously excited. Keep it up and increase the pressure. To take it up a notch, use your other hand to press down on the area between her naval and her pubic mound. That will increase the pressure from the other side as well, adding to her arousal.

Help her to relax
If she tells you she feels like she’s going to pee, assure her that’s it’s not possible for her to do so and to just let it go. Her instincts will tell her to hold back, so you need to encourage her. Coax her by saying things like “I can’t wait for you to come” or “I can’t wait for you to soak me.” As she gets closer to climaxing, prepare yourself for either a spray or a gushing liquid. Either way, it’s all good. The amount that comes out depends on the woman, so it could be anywhere from a teaspoon to a cup. Make sure you have a towel handy to clean up and give her a break after she comes. Just like the tip of your penis, her vagina might be very sensitive.

Making her ejaculate takes patience
Like anything else, practice makes perfect. She might not ejaculate the first time, but keep trying. After all, winners never quit. Try different positions, talking dirty, increased foreplay, and more stimulation on other parts of her body as you insert your fingers inside. For instance, you can kneel while fingering her and use the other hand to touch her breasts and lick her. Or try alternating between penetration and your fingers in doggy-style. If you’re well-endowed you may be able to make her come through penetration alone. If all else fails, a little vibrator action will likely get her juiced up.

G-Spot (Urethral Sponge) Massage instructional videos to help your lover squirt.
How to give women squirting orgasms

How to: Female Ejaculation