Aquatic.  Things were nice and aquatic for Gerlinde.<br/><br/>The urgency of the tongue laving her implanted penis was a fine and frantic wash around a succulent stretching feeling.  It was like being buried in the most nervous of tide pools, the clinging tissue twitching and lashing and squirming in delicious desperation.  And Gerlinde did not think of anything else but this:  Her flesh sank in and she sank into its experience, and let the sensations soak through.<br/><br/>They both were learning, she thought.  Lisle, learning how to please.  Gerlinde, learning how to be pleased.  A shared discovery stretching the experience of their flesh like dusk stretches the horizon.  Ah, discovery.  Ah, science.<br/><br/>Gerlinde kept looking into Lisle's eyes, their blue steady and sharp as a compass.  She resolved to teach her.  First, she taught her she was a good student, and that it was alright, by stroking the flossy hair on the back of Lisle's neck, and nuzzling her caving cheeks with the heel of her hand.<br/><br/>"Good, Lisle.  It's alright."  The words came out still burning, twitching from the tongue that tapped the back of her teeth.  She stared and she pet.  "I won't choke you."<br/><br/>And she put the clump of her cockhead so deep that Lisle's gorge grabbed onto its tip and pulled a string of pre-seed out.<br/><br/>She drew back.  She continued her teaching.  And all the while, her hand kept skimming along the rigidity of Lisle's clitoris, in just the way that had made Lisle moan.  She stroked in just that precise way, seeing how it would lead.  She stroked and taught.<br/><br/>When Lisle licked the narrow "V" where the shaft met the glans, Gerlinde sighed luxuriously.  The pulse in her cock took on a triphammer pace.  "That's...very good there.  When you lick it."<br/><br/>She stroked in just that precise way along the clitoris' hot lift, faster now.<br/><br/>Gerlinde purred; her eyes dropped sultry, as Lisle lapped along the broad ridge hanging under the shaft in tubular softness.  "That's nice.  It...tells...the cum there to...come out."<br/><br/>She stroked in that special, that wonderful way along the seethe of Lisle's clitoris, as her prostate strained fit to pop.  She stroked slower, deeper there.<br/><br/>Gerlinde moaned in a throaty, rugged sound; she gasped as Lisle teased the satiny prod of her tongue inside the slit of the glans and culled out a stroke of fluid.  Her eyes were electrical fires inside Lisle's.  She was so pleased.  So excited.  She showed that.<br/><br/>"That's best of all."<br/><br/>And she was panting now.  Gerlinde had learned; she stroked that splendid, right level of touch rapidly, screwing her hips a bit, churning the big prod in the elastic grasp of Lisle's mouth.  Her pale, slender belly tensed.  The fingers that brushed Lisle's face had a shiver in them.  Her voice had the same.<br/><br/>"Now you know how to please."<br/><br/>Gerlinde stroked faster, consumed by the shared pleasure - the shared discovery - the ecstasy flaring up in her.<br/><br/>"Now...show me...all you learned.  Please me."<br/><br/>She stroked and pet and submerged in green eyes and wet mouth and buzzing pussy scent.<br/><br/>"Please me."