Pia's body was twitching and spasming. She was at he cusp of another peak.
She moved one of her hands away from Iseria's ass, and plunged two fingers into Iseria's cunt, thrusting them in and out in time with the fingers in her ass.

"Ahhh, Ahhh, Damn its so good." Iseria moaned as the fingers plunged into her sopping cunt and beginning to thrust in time with the ones in her ass giving her waves of pleasure as the thrusting increased as Pia neared another climax. Speeding up her tail and the dildo as Pia thrusted faster into her Iseria thrusted deeper and deeper into the tight holes as she neared her own climax.

As the two women fucked each other with increased vigor, the vibrations of the dryer intensified, probably near the end of its program. The thrusting and the vibrations, the sound of Iseria's voice between her legs, it was all too much for poor Pia.
"OHH, AHHHHH, I'm gonna, I'm gonna..OOHHHH!". Pia's moans turned into a scream.
Pia came so hard it hurt. Her poor body had already been pushed beyond her normal limits, and yet Iseria had wrung another orgasm out of it.

"Tired already?" Iseria asked stopping the fucking as she rode out her orgasm. "If you want me to stop then beg. If you convince me I may let you go." she said waiting for Pia's answer.

"Please..", Pia begged, her bosom heaving as she gasped for air. She was covered in sweat, what little clothes she wore was soaked. "I am exhausted. It feels so good, but I'm so sore. I'll do anything, I'll be your little slut, just let me rest.. ."

"Fine slut. You may rest." Iseria said as she removed her tail and shoved the dildo far enough into Pia that she could not get it out by herself. " Go where you want but if you ever want that dildo out of your pussy you will have to come back to me." she laughed sitting up on the dryer.

"What!" Pia exclaimed. "Did you just PLUG ME SHUT?".
Her face was a mask of perfect disbelief. "You can't do that! I need my vagina! Its part of me, you can't just shut it off as a piece of faulty plumbing!"

"Oh it can come out but I doubt you can get to it yourself. If you can so much the better for you then you won't have to come see me again. That is unless you really don't need to rest then I will remove it now and continue fucking you with it." Iseria laughed not moving as the girl squirmed seemingly angry about the dildo lodged inside her.

Pia felt a tear in her eye! She couldn't believe this! Her own pussy held hostage against her!
And I tried to please her..

Slowly gathering her resolve, Pia nodded.

She slid down from the drier. Her legs were wobbly from the exertion. Luckily, she did not intend to keep standing for long.
Kneeling in from of the succubus, she started kissing her toes.
Why am I even doing this! This is so humiliating! Yet, she had to admit that under better circumstances, playing the obedient servant would have been fun.

"If I please you, make you feel good, will you help me take it out?", Pia asked in an unsteady voice. She stopped kissing the toes, and took one in her mouth to gently suck it. "I'll make it good for you, I promise!"

Pia turned her attention from the feet to the legs, running her tongue over the salty, sweaty skin of the demoness.

As Pia started kissing her feet seemingly willing to do anything to have the dildo removed from her tender pussy Iseria said "If you please me well enough, I might be moved to take it out." Spreading her legs to give the girl free roam over her body Iseria sat back and enjoyed the attentions of the girl's tongue.

Without speaking, Pia continued to let her tongue run over Iseria's smooth, salty skin. Moving higher up, she started to lick the insides of the succubus' thigh, leaving a trail where the moisture of her thighs replaced the sweat. Occasionally, she would put her mouth on the skin, letting her teeth graze, but stopped short of biting.
Moving yet higher up, she let the orbs of her breasts slide along the demoness' leg.
Finally, her tiny mouth was not even an inch from Iseria's delicious cunt.
She hesitated for a few seconds before leaning closer, kissing them, lips against nether lips.