As Tiff tried to get rid of the thick, sticky cum covering her Katie looked down at her friend, "Sorry about that Tiff. Let me help you with that."
She wasn't embarrassed or sorry, she just figured that since Tiff as her friend it wasn't right to leave her standing there covered in cum.
"Help how?" Tiff tired to wring the viscus substance from her hair with little luck.
Rather than explain, Katie let out a grunt and demonstrated what she meant. Long pink tongue snaking out of her mouth she leaned over and began to lick the cum off of her friend, letting out little snorts of concentration as she did.
Tiff tired to push her friend's tongue away, "Don't do that Katie! It's disgusting!"
"What's wrong with you Tiff? Getting on my case for masturbating and now getting upset over a little cum? You really need to lighten up, besides, it's not like it doesn't taste good," Katie licked her lips and went back to licking Tiff clean.
Deciding that it wasn't worth making her friend mad Tiff put up with the treatment. She had no desire to anger the monstrosity and she figured that being licked clean wasn't any worse than being covered in drying cum. Katie was being gentle and the touch of her tongue though disgusting to think about wasn't all that terrible if she kept her mind elsewhere.
When Katie's tongue flicked down into her shirt she jumped back, "Hey, watch it!"
Katie just laughed, "You're really being touchy today. You've got to lighten up some."
Tiff would have protested, but she felt an odd sensation coming from her pussy and brought her hands between her legs.
"Oh, that's what you want it it?" growling Katie used her tongue to force Tiff's hands away and began to coil it around her crotch. Flicking and pressing it between her friend's legs Katie delighted in the way it made her friend squirm.
"Stop that Katie. It's starting to hurt," Tiff protested, but realized that the discomfort was coming from within her pants, not as a result of Katie's attentions. Looking down she saw that something was filling up the front of her crotch. Frantically she struggled with the zipper of her jeans to see what was happening to her. To her horror when her actions freed the rapidly growing sheath making its way up her stomach. The bestial organ stopped its growth just short of her belly button, a miniature version of Katie's, right down to its bright blue color.
Not missing a trick Katie let out a deep rumble and went straight back to licking her friend, this time focusing on her new organ rather than cleaning her. A gasp from Tiff brought a smile to her brutal features.
Shocked by her friend's sudden shameless actions Tiff could only stand there as Katie began to use her dexterous tongue to try and pleasure her. Her fear was too great at first, but then under the sensual touch of her friend's tongue she began to feel a stirring within her sheath. Slowly the dark blue head of her shaft emerged and began to snake its way up to her chest. Proportionally it was smaller that Katie's, but to Tiff it seemed enormous as it continued to grow.
"Now you're having fun, aren't you?" Katie stopped for a moment to look at Tiff.
Tiff's only reply was a small whimper of fear mixed with pleasure. It felt so good, but it was so wrong at the same time. Her shaft had extended to its full length, so large that it was brushing against her breasts and she could practically see it throbbing with the need for release. Unable to bring herself to touch it she stared pleadingly at Katie, longing for her help.
"What? Do you need something?" Teasingly Katie flicked a claw against Tiff's shaft, delighting in the look it brought to her friend's face, "It it too big for you to handle alone?"
Katie's question was very close to the truth since Tiff doubted that she could fit her hands all the way around her new organ.
"I thought that you considered this sort of thing disgusting," Katie's long tongue darted across the head of Tiff's shaft to taste the precum that was just starting to ooze.
"Oh, alright then," still smiling Katie began to aggressively wrap her tongue around Tiff's shaft, rubbing and squeezing with all her might.
Under such an assault of pleasure Tiff could hardly stand up. In fact she found that she was leaning heavily against Katie's tongue, letting it help support her. Without warning she felt a tensing deep within herself that jetted through her new organ. Unthinkingly she thrust against Katie's tongue again and again as she shot her load into her friend's eager mouth.
At last she was spent ans Katie released her, licking her lips, "You know what Tiff? I'd say that you taste better than I do."
Before Tiff could react Katie forced the tip of her cum covered tongue into her mouth.
Tiff pulled away gagging at the bitter taste of her cum and the disgusting flavor of Katie's saliva. It was like something had crawled into her friend's mouth and started to rot.
"Aww, you don't like it? Because I think your cum is one of the best things I've tasted. It's so good that I'd be willing to eat it any day."