Sup my lovlies! Okay   so here's part three! After this there will be the creepypasta one shot with Bill as Jeff and Dipper as Ticci Toby but he will not stutter. Then I well combine the trans dipper with a maid one shot so that should be fun. Then there will be Ancient discovery part three! Whoa! Enjoy my lovlies!

Bill slowly comes to and slowly opens his eyes and shivers feeling a slight chill. He goes to move his arms to rub his eyes when he finds he can't move them. He moves his heads to look up to find his arms bined with chains and the chains tied to a pointed rock on the cave floor. 

Another shiver runs through the Pirates spine when he feels another chill. He gasps with slight horror that he finds himself totally naked with the siren wrapped around his legs and its head resting against his stomach. Bill freezes for a moment then does a small sigh of relief when he realizes the siren is still asleep. Licking his dry lips he tries to think of way to move and undo the chains before the siren wakes  up. 

Bill moves his arms until they are restrained and hold back again and finds they are only able to be able to touch his head before he can't move them any further. He curses quietly because he can't see if they are cuffed or simply just wrapped up in the chains. Bill stays still when he feels movement of the tail loosen slightly on his legs and waits a few moments before going back to trying to undo the chains on his hands again figuring the siren was still asleep. 

He was wrong and freezes feeling a hand on his stomach and a quiet hiss. Bill refuses to look at it hoping it will just leave so he undo these dumb chains keeping him on the cold ground. Again he was wrong once again as it grabs his chin and forces him to look it. The sirens eyes were back to being brown and its piecing gaze was making the blonde slightly uncomfortable. Bill glares at it and bares his teeth at the siren wanting so badly to kill this siren. 

He feels the tail loosen its grip entirely off his legs and move to the side. Bill takes this chance to kick the siren hard in the stomach and away from his body. Bill moves closer to the rock and finally is able to see his hands and wrists and glares at the chain when he realizes he was indeed in cuffs. He couldn't get these off without the key if there even was one. A tight grip grabs his ankle and pulls him away from the rock making Bill hiss through his teeth when his back scrapes against the rough uneven    floor. He is met with the angered face of the siren and Bill just glares at it not even feeling afraid for his actions. 

The siren holds up a slightly rusted key for Bill to see and his eyes widen a fraction be used it was the key for cuffs on his wrists. He growls and his glare grows darker at the siren. "Give me that key!" A smug smile forms on the sirens lips and it tosses the key away from both of them. It make a clink sound when it lands in a small puddle a few feet from a golden teasure chest. "Uncuff me now you stupid fish!"

Ignoring his outburst and threats the brown haired siren forces Bills legs apart and moves his tail between his legs. Moving a webbed hand over the blondes chest and faintly tracing the few scars across Bills chest. Bill shivers has the sirens webbed and clawed hands trace over his scares with a calm and slightly curious expression. "Hey fish ass stop touching me!" He growls when his outburst is ignored once more and the siren continues to touch his chest and even his stomach. 

Those clawed hands move upward towards his neck and looks at the golden triangle necklace that is always around Bills neck. He moves his hands again and cups the blondes cheeks and runs a clawed thumb over his lips. The sirens eyes slowly start to turn blue again replacing the brown eyes with blue ones. He looks into the blondes golden ones and leans his face closer to the Pirates.

Bill tries to lean his head away but his head was already on the ground so he moves his head to the side and away from those piercing blue eyes. The siren grabs his chin and forces his eyes back upon it and the siren smashes his lips against the blondes. 

Bills eyes widen and he keeps his lips at the thin line and tired to move his head away. The siren keeps a tight hold on his chin and gently bites at Bills bottom lip making small beads of blood form where his teeth were. Bill gasps slightly at the pain and it gives enough time and room for the siren to slip his tongue into the blondes mouth and kiss him deeply. 

Bill gives a muffled protest when he enters his mouth and tries to push the sirens tongue back out of his mouth. The sirens tilts his head and deepens the kiss once more and maps the inside of the blondes mouth and moves his body fullly against Bills and removes his webbed hand from his chin and runs it down the blondes chest. Bill feels weak against him as he continues to kiss him and feel his chest. His snap open but he doesn't remember closing them when the hand moves lower to his thigh and he attempts to move his leg together but meets the big blue tail between his legs. 

Bill starts to struggle and try to move away from the body over him and mouth over his own. The siren keeps him in place and keeps kissing and move his hand to the blondes side and rubs small circles to help calm him. Bill stops struggling at the action and pants through his nose and starts to lose himself in the kiss and finds himself slowly starting to kiss back as his eyes flutter shut. 

The siren gives a pleased hum and presses his tail closer to Bills lower half and traces small circles against Bills thigh. The brown haired siren pulls back from the kiss and licks his lips, he kisses down the blondes jaw and neck and gently bites at the flesh of his neck and shoulder. 

Bill couldn't stop the first small moan to slip though his lips then bites his bottom lip to keep from making anymore sounds. He freezes when he feels something against his entrance and tries again to close his legs against the tail. The siren lifts his head and moves his hands down and spreads Bill legs apart. 

Bill looks at Dippers tail that's between his legs and his eyes widen at what he sees. A slit is on Dippers tail and the scales surrounding it were a slight shade paler then the blue scales on the rest of the tail. But what surprised was the length coming out of slit that was near his entrance. Bill starts to struggle again and tries to moves away from the siren. The siren gives a small hiss and grabs the blondes legs and pulls him back. 

He slowly slides inside of the blonde. Bill hisses through his teeth and squeezes his eyes shut at the pain going through his lower half. He silently thanks that the siren is going slow and trying not to tear him open. Bill takes deep breaths as the siren is fully sheathed inside of him but keeps still noticing his soon to be mate still in pain. He cups Bills cheeks and kisses him gently not wanting him to be in pain. 

Bill slowly kisses back and focuses on the kiss as the pain slowly fades to a dull ache and he practically sighs in relief. The siren adjusts his tail when Bill kisses back more steadily and slowly pulls out before thrusting back in and keeps a slowly pace. 

Bills breath hitches and he squirms under the siren as the odd yet slightly pleasurable feeling. The siren slips his tongue into Bills mouth in a passionate kiss and keeps a steady pace and gives off his own moans and clicks from the blondes tight warm heat. 

Bill tugs on the chains wanting them off and closes his eyes as he kisses back. The siren gives a pleased purr and pulls away from the kiss and nips at Bills neck. Bill bites his lip hard to stop from moaning or crying out in pleasure. 

The siren moves his body closer and thrusts deeper and faster inside of the blonde. He bites his shoulder right when he hits the blondes prostrate. 

Bill cries out as he came and pants as he catches his breath and comes down from his high. The sirens thrusts turn more frantic and have less of a pace and he gives a loud moan and sinks his teeth into Bills shoulder. Bill gives a pained whimper and squeezes his eyes shut tightly. 

The brown haired siren holds onto Bill tightly and moves his tail as closely as he can as the first egg enters his blonde mate. Bill squeezes his eyes shut tighter as he feel something bigger enter him and settle in his stomach. He whimpers again feeling another join the first and one more after that. After a few minutes 3 eggs are safely inside of Bills stomach and the siren pulls out of him and grabs the key. 

He moves back over to Bill and unlocks the cuffs off his wrists and kisses each hand soflty when he sees the red marks and small beads of blood where the cuffs but into the Pirates wrists. Bill keeps his eyes closed and feels himself slowly start to fall asleep. He sighs softly when his worst season are released from the cuffs and feels small kisses on his sore hands and wrists. 

The siren lays down beside Bill and wraps his tail around his legs and wraps his arms around Bills torso. He coos in Bills ear and nuzzles his neck while rubbing his mates extended stomach. Bill lays practically limp in the sirens arms and falls asleep in his embrace. 

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Wow I did it! I'm slightly blushes after writing that. Anyways hope you enjoyed my lovey readers and spread the Billdip love!