If she's set on doing this, might as well make it easier for her.

You gently grasp her hands and pull them from your pants, though she makes sounds of disagreement and unhappiness as you do. She doesn't resist, though, as the contact between you seems to reinforce your bond as sorcerer and familiar subconsciously. In truth, it would be easy for her to escape your grasp as she is viscous and could simply ooze through your grasp. She only goes along with you because, as you feel from her as you touch her gooey flesh, she likes you. The warm affection for you is clear even through the disappointment and frustration of being pulled away from you.

You know, though, that her disappointment will soon be assuaged as you let go of her and, with a sigh and a deep flush of embarrassment upon your lips, you reach down towards the front of your breeches and begin to loosen the laces that keep them fastened. You've decided that, despite your own shyness and embarrassment at this, you weren't going to deny her what she wanted. Both because it was your responsibility as her summoner to care for her and provide for her and because, quite simply, you were far too aroused to keep her from touching you as she wanted.

She watched with curiosity as you loosened the laces of your breeches, but curiosity turned to pure joy as she realized what you were doing. "Ah, ooooh.", she cooed happily, burbling in delight as you unlaced your breeches and revealed the hot, rigid flesh beneath.

As soon as you opened the front of your trousers, your erection sprang free, liberated from the stifling confines of your garment. The member revealed is, in actuality, quite impressive. If anybody saw this part of you, they'd have a hard time calling you "Little Toby"with a straight face, that was for sure, as your penis, in its fully erect state, was just over eleven inches long and thick enough around that the average female humanoid wouldn't be able to wrap their hand around it. It was probably the only part of you that wasn't skinny and slight, but, as of yet, only you had seen that part of you...well, and now the slime girl, of course.

Said slime girl looked upon your erection, throbbing and hard as steel, with wide and hungry eyes. She made a soft sound that was half-appreciation and half-lust as she reached out towards your rigid rod. Her slender, soft fingers wrapped about your thick shaft, closing around as much of your girth as it could. In its natural shape, her hand was small and dainty and, as such, it was unable to fully encompass the full breadth of your manhood. But, of course, she was a slime and her natural state was not the state she was locked into.

As such, you were not surprised as her hand stretched to fully surround your shaft, her hand becoming more of a circle of warm goo around the middle of your shaft. The ooze wriggled and vibrated of its own accord, sending wonderful chills of sensation through your body as it did so. You trembled and gave out a soft moan at the feeling and your slime girl looked up at you with a bright smile at that, enjoying your pleasured reactions to her attentions and letting you feel that emotion as vividly as if it was your own.

Your pleasured reactions, however, were not the reason she was giving you attention in the first place and she seems to remember this as she begins to stroke your hardened member at a slow, even pace. Her wrist moves with fluid flexibility, rotating that ring of pleasantly vibrating goo as it slides up and down your lengthy shaft to add even more pleasurable sensation to her actions. You, unused to such attention, can only pant unevenly and grasp at discarded books on the ground beside you, fingers clenching tightly as you feel sexual pleasure not brought about by your own hand for the first time.

The slime girl's hand moves faster and faster upon you, her attentions growing more and more eager as her lust and hunger both increase. You know that you aren't going to last long under such ministrations, your inexperience showing as you can already feel the telltale sensations of a climax approaching down in your now swollen and heavy testicles. Your quick gasping breaths and restless movements of your hips seem to let the slime girl know that such an event is impending and she strokes you even faster, her eyes fixed upon the purple head of your penis and the shimmering pre-cum that is already oozing from you. She licks her lips in anticipation and you are helpless to do anything but lay back and let the she-slime bring you to the edge.