An orgasm that leaves a puddle
Lesbian squirting is the orgasm that shows: fluid leaves the urethra in a spray or a gush, thin and clear, and soaks whatever is underneath. Towels and a waterproof sheet go down before anyone starts, and a glass of water beforehand helps.
Pressure from inside and outside
The G-spot is the main route. Two fingers curl hard and fast against the front wall while the heel of the other hand presses down on the belly just above the pubic bone, so the spot gets squeezed from both sides; that is G-spot fingering at full speed, with the wrist doing the pumping. A wand vibrator held against the clit adds pressure from outside, and some women squirt from the wand alone. The build feels close to needing to pee, and the release comes from bearing down and letting go instead of clenching, which is easier with an empty bladder. Strap-on fucking with a curved dildo angled toward the front wall reaches the same spot, and pulling out at the peak lets the gush through.
Both women in the spray
Lesbian oral with two fingers pressing inside combines the two routes, and the woman giving takes the spray on her face and tits. Either partner can squirt, by turns or both in one session. Not every woman squirts, and the ones who do cannot always do it on demand. A waterproof mattress protector is the least glamorous item in lesbian squirt porn and the hardest one to do without.