There you go! The third and final chapter! I hop you enjoy ;)

Katherine is still panting but Elena keeps stroking her clit. She can feel how Katherine becomes wetter and wetter again. Her other hand travels down her own body and she starts flicking her own clit.

"Please stop, I need a break, I'm can't..." Katherine pants out.

"Oh no this will go on until one of us passes out. You came here saying you wanted to fuck me all night, so we're doing it."

Elena pushes three of her fingers into Katherine's dripping centre and thrusts as fast as she can. Katherine moans loudly and tangles her hands in Elena's hair. Her hips start grinding against Elena's hand involuntarily. She feels exhausted and she isn't sure if she can take another orgasm, sure she is a vampire but she has her limits.

Elena is panting and riding two of her fingers by now. She wants Katherine to come so badly. She wants to make her scream and beg for more so she can do it all over again. It feels so good pushing her digits into Katherine, she could do this forever.

Katherine's comes without warning, suddenly her pussy throbs wildly and she once again coats Elena's hand with her release. Elena pulls her hand out and focuses on her own pleasure. She can feel her orgasm nearing but she needs something more.

She pushes a third finger into her vagina and goes faster than before. She moans at the feeling of being more stretched. Looking up she notices that Katherine has recovered and is staring at her with a lust filled gaze.

Elena arches her back a little more and rolls a nipple between her fingers, while she is still fucking herself. She knows how much Katherine gets turned on by that.

"You know… I could use a little help here." Elena says smiling seductively.

Immediately Katherine is in front of Elena and kisses down her jaw and neck to her collarbone, where she bites into the flesh lightly.

Katherine puts one finger on Elena's clit but doesn't start moving yet. She just presses down onto the little bundle of nerves, which makes Elena's hips jerk in response.

She rubs Elena's clit and leans in to whisper into her ear.

"Don't stop. I love the sight of you fucking yourself. Just keep going and I will give you real pleasure."

She moves so she is behind Elena but her hand is still working on her clit.

"Have you ever been fucked in the ass Elena? I guess not. You are such a good girl you would never think about something so dirty or would you?"

Katherine feels how Elena's folds become wetter and how she grinds into her hand even more. Katherine smirks knowingly and flicks Elena's clit faster.

"Oh does the thought of a big cock in your ass turn you on? Do you like how I talk about it?"

Elena nods her head because she is too caught up to speak.

"Into the dirty talk I see. Why didn't you tell me earlier?"

Katherine takes her other hand and traces the outlines of Elena's butt hole. Elena gasps in surprise she is vibrating with want and arousal. She doesn't know why this turns her on so much, it just does.

"Do it, Kat. Do it!" Elena is panting and tries to push herself over Katherine's finger.

"Well if you want to." Katherine smirks and pushes her finger slightly into Elena's ass. Elena moans loudly at the contact, her hips jerk wildly.

Elena is exhausted. Her legs are getting tired of holding her up and pushing her up and down. She is so close to coming and she can't wait anymore. The tension that has build up is nearly tearing her apart.

"Fuck Katherine! I'm so close! I want to come, please, make me come!"

Katherine stops her motions on Elena's clit and pushes the girl so she is bent forward, her face pressed into the mattress.

With that Katherine pushes her finger all the way into Elena's ass and begins to fuck her.

Elena screams and writhes.

"You love this, don't you? Being fucked like a whore, oh you feel so good!"

"Ohhh Goood Yeeees! Don't stop! I'm coming, Kat! I'm Coming!"

Elena feels her orgasm nearing quickly and pounds into herself more forcefully. Katherine speeds up as well and then her orgasm crashes over Elena.

With a loud "OOH YEAAH!" she comes with her face still pressed into the mattress and her ass high up in the air and she keeps on coming because Katherine doesn't stop. She just keeps on fucking her in the ass and even speeds up a little more.

Elena screams her way through Katherine's rough fuck and collapses on the bed once Katherine stops.

"Well, that was a fun Saturday." Katherine says with a genuine smile before she curls up beside Elena.