You wonder for a second if maybe it would be more dominant to stop her from pleasuring herself, but decide it’s probably better to let her have some 'hands on involvement'. Instead, you reach up to caress and fondle her breasts, gently tugging and rubbing her stiff nipples and giving them the occasional soft pinch. The pretty tigershark responds well to your movements, moaning and gasping from pleasure. She bites her lip, thankfully with her human teeth.
Seeing that she is speeding up, you accelerate your thrusts, trying to match her pace. The tendrils inside her vagina writhe and flex, an experience unlike anything you’ve had before - you don’t think any creature other than a succubus could give you this sort of pleasure!
Izma continues to moan and groan loudly, and starts to mash her own hips against yours, trying to work in as many inches of your flared horse-cock as she can. As she fucks you, you can see long streams of girlish-goo dribbling from her pussy, and you know full well she’s close to her limit. Unable to resist, even as you feel that familiar pressure signaling the approach of your own climax, you bend upward to plant a kiss on one of Izma’s hard nipples, immediately switching to a brief, gentle suckle.
This sends a shudder through Izma’s whole body. She cries loudly as she orgasms, a small explosion of fem-cum splattering your belly, and several subsequent squirts dripping down your thighs. Her vagina clamps down on your equine dong, making you grunt as the feelers in her pussy milk you for all you’ve got. You groan deep in your throat, the scent of Izma’s hot girl-cum filling your nostrils and the feeling of her milking, hungry feelers is too much. You cum, blasting everything you have deep into Izma’s cunt. Your load is so vast that it bloats and distends her belly, almost giving her a second orgasm from the sensations.
The two of you roll apart, panting and gasping for breath. “Mmm, that was amazing,” Izma says, giving you a long drawn-out kiss and licking you face affectionately. “Come fill me whenever you need to.” You grin back at Izma knowingly.
She giggles and runs her tongue over your lips, her tongue lingering for a few moments before she gives you another long kiss and lets you go.