Female

After a moment of reflection, you decide that a feminine form would be more appealing to you, and move to click it.

You immediately begin growing some more, but something is... different this time. You can feel your essence packing into a defined shape and condensing even as you shift and expand, and it's such an odd sensation that you begin to toss and turn.

You merely roll about on the floor in a confused, churning heap at first, but then your newly chosen shape begins to take hold.

Your mass begins to pull in and elongate into an oblong roll of liquid, which then forms creases that rapidly deepen until you have four split-off tendrils of water; two on your bottom and one on both sides.

The four tendrils become more intricate and solid by the second, a smooth, firm "skin" packing in the water as hands and feet finish forming to cap off your new arms and legs. As you rub your new limbs together and your torso begins to gain shape, you realize what it is your feeling as you gain a true physical form.

Pleasure.

A low gurgle escapes from you as you trace your fingers over your forming abdomen. You linger over your slender waist and delicately rounded hips for a while until you feel an especially delightful tug on your freshly minted chest, and start groping needfully at the two soft little mounds there.

Just as you think that you've found the pinnacle of sensation, your head starts forming, which makes you accidentally drop you hands, only to have them land on your groin.

A gasp escapes your half-formed lips as you begin to frantically rub the apex of your legs. You block out all other awareness, your every attention focused on building up the feeling your experiencing.

It goes on and on, the mounting pressure between your legs, the rough rock rasping your delicate new skin, it's all too much to bear, until finally, blessedly, you hit a blissful peak. A clear, high note peals from your mouth as you cry out in climax, writhing on the ground as waves of ecstasy crash within you.

You lie panting in darkness until you catch your breath and realize your eyes are closed.

You have eyes now.

You open your eyes and eventually stand up on legs shaky from newness and orgasm-aftershocks. You walk to the water's edge and peer down at your reflection, eager to see your new form.

A short and slender woman stares back at you in the water. Your lissom limbs, narrow shoulders, and modest bust and hips all come together into a waif-like image in your reflection. You face is similarly delicate, with petite lips and nose, round cheeks, and big purple eyes. You think your ears are pointed like an elf's, but when you bend down closer, you see your ears actually have fin-like extensions.

Your whole body is crystal blue and transparent, with opaque, sea-foam green stripes criss-crossing over your hips, shoulders, chest, and back. Your hair is a softly shifting and waving mane of darker blue that reaches between your shoulder blades. You experimentally touch the water with a finger and use Absorb.

The pale stripes on your body glow a bright yellow-green as you feel the water flow under your skin and towards your head, which becomes heavier as your hair lengthens to the small of your back.

Okay, so you glow when you use magic or special abilities, neat, and your hair stores extra water so you won't be cut off on dry land, neat and useful.

You check your stats, and you see two new special abilities;
"Aqua Sigils: Passive ability that increases the power and decreases the cast time of all water-based active abilities."
"Fluid Retention: Store up to 1/2 your base mass as extra water on your body for purposes of special abilities"

You also see that your species name is now listed as Undine. Huh.

A shifting sound catches your attention and you turn back to the cave.

Oh, right. You still have a mage to deal with. A dark-skinned, nubile beauty of an Apprentice wind mage, but a mage all the same.