Chapter 28

"I-I'm cumming!!" Grayfia shouted as loud as she could as her tight cunt walls constricted against Issei's twitching tools. Her squirt covering his hips and stomach.

"And a squitter too!" The teen said in amazement as she hadn't squirted for him before. "You're still pretty tight for someone who gave birth." Issei said, enjoying her tight hot walls that held him in a vice. "Guess that bastard husband of yours is small as shit." He insulted with a smug grin.

"Y…Yes." She admitted. "H-He's…got nothing…compared to you." The beauty said, her voice weak in pleasure. Rias was shocked and aroused that this teen was longer than a full-grown man.

She wondered how big he would be when he got older. 'Ah!' Moaning in her mind, she felt her walls tighten around her invading fingers with her other hand massaging her hard teats.

Issei smirked proudly. He loved it when she told him he was bigger than her husband. With a jerk back, leaving only the head inside, her jabbed himself back deep, hitting her womb once more.

"Ahhh! Cumming again!" Once again, she shouted out her release. Her silver eyes rolled to the back of her head, tongue sticking out with drool trickling down her lovely face. Delicate fingers clenched the sheets in a death-grip.

Toes that were on the side of Issei's hips curled in delicious ecstasy with her mind soon becoming hazy and could barely think of anything but the cock inside her.

'Damn! She can't stop!' Issei was amazed at how much she came from just two pumps. With a smirk, he moved himself in and out of his whore at his usual rough pace. He ignored the fact that she kept coating him in her juices. It only made him glide in and out of her at a faster pace. The bed shook and creaked under the powerful thrusts.

'H-He's fucking me into a coma while Rias is watching!' It was such a pussy gushing thought of being fucked in front of her husband's sister that she couldn't stop cumming.

Weakly, she glanced over and smiled a little when she saw that Rias had her fingers inside her panties, her shirt open, and was mauling herself like an animal while watching them.

'I…I wonder…how it feels…?' Rias thought to herself in a daze. Her eyes couldn't leave the enticing sight of their passionate sex. She licked her lips when she saw Issei's sweating and muscles tightening with each pump of his pelvis.

'He's…such a stud.' The princess admitted to herself. 'To be able…to fuck like that!' Moaning softly, she drenched her panties in her love juice. Her pants became noticeable and blushed harder when she saw Issei looking at her with lustful eyes.

"Wow! Just look at her, Fia-chan." The brunette said, pushing Grayfia's head to the side so she could see Rias' disheveled appearance. "I don't know if I can hold out with such an intoxicating sight of my Onee-sama getting off to us." Issei grunted harder while fucking his prick all the way into his lover, not caring for her fingers that wrapped around his back, bringing him closer. Their chests squashed, increasing their pleasure.

Issei's body soon began to shake and the familiar churning in his balls singled his upcoming release. Grayfia could feel it when she saw his scrunched-up face and trembling body. The twitching of his dick also sent shocks of pleasure up and down her body. "Fuck! I'm about to blow!" The teen announced, their connecting hips meeting in a wet slapping sounds that were pleasing to all occupants' ears.

"M-M-Me too!" Grayfia cried out, bringing his ear right up to her constantly moaning lips. "Go ahead. Fill this pussy up with your young semen." She whispered loud enough for both to hear.

Her hot breath, sweaty skin, and enticing voice was the last straw for both teenagers. "Cumming!" Roaring out his climax, Issei let all the stored up cum shoot out deep into his slaves' cunt. The moment he came, his pulsing member engorging erratically, spreading her walls farther. "M-Me too!!!" Screaming along with her master, she coated the bed, herself, and Issei with their combined juices. Some even hit the floor and Rias who looked at the cumming pair with wide eyes and blush coating her entire face and body.

Still cumming, with a smirk, Issei pulled his spewing member out of Grayfia's stuffed cunt and let his seed cover her hair, face, stomach, and wonderful tits. "Hm…That's a wonderful look for you." The teen said with a lick of his lips. Seeing as she couldn't say anything, her eyes rolled to the back of her head and only sound coming from her shaking body were constant weak moans.

"While I'd like to take that beautiful ass, I've got to go. Don't want my parents to worry about me." Issei informed the two blushing women. Turning to Rias, he smirked at her blush that resembled her crimson hair. "Could you please?" He asked.

Nodding shakily, she lifted her hand underneath him and her families crest appeared to teleport him away. As he was about to vanish, he left her with something that made her moan and leak out more love juice. "I'll be back tomorrow to claim her ass and you." It was a promise that made her hot and bothered.

That night, Rias couldn't fall asleep as her mind was focused on the shaking Grayfia covered in jizz with Issei's sexy smirk that drove her wild. Her fingers barely held in her undying lust for Issei.

~Next Day~

After another wonderful night of fucking his two Fallen Angel slaves, Issei was just waiting patiently for his soon-to-be slave redhead to summon him and complete his plan. A perverted giggle escaped his lips as he lied in bed. 'Can't wait for later. She'll be mine.' He promised himself.

At the Gremory training home, Rias was training with her queen but her mind was somewhere else while she fired her family's magic to counter Akeno's lightning. She didn't know if she could handle just watching the two have sex anymore. Last night she had almost thrown her pride to the wind and let herself be taken by Issei.

Akeno saw her best-friend's mind somewhere else and it somewhat concerned her. The beauty knew she was having a hard time but she also knew Rias wouldn't talk about her feelings until she felt necessary. 'I can only hope we can win in the coming days.' Akeno mused to herself.

Grayfa, who was in the home, watched her sister-in-law fighting with her queen. The mature Devil knew, even with all the training, she couldn't defeat Riser. Only Issei could. She knew because she had felt his power and it continued to make her hot every time she remembered the overwhelming feeling. 'No!' She shouted to herself as her hand had slowly crept its way to her dripping pussy. 'Save it for tonight.' With that, she held in her lust and went back to cleaning and preparing the bedroom for her master.

Night soon greeted the team as they retired to their rooms for the new training day. The ladies just didn't know that they would have an extra member when they woke up.

In Rias' room was herself, Grayfia, and Issei who had just arrived. The teenager was looking at the two with lust that he didn't bother to hide. "Time for the fun." With that said, he pushed Grayfia to the wall, ripped off her bottoms, to show her white skin that shone in the moonlight that peeked through the blinds.

"Uha." Grayfia lightning moaned at the manhandling. The moan grew in volume when she felt Issei probe her asshole with his index finger. "N-N-No! Not there!" She said in fake horror and shock. "I've never taken anything up my ass!" That was a lie and both knew it.

"There is a first time for everything." Saying that, Issei pumped his fingers in and out of Grayfia, making sure she was nice and stretched out before he fucked her butt.

Thrusting one finger for some time, he soon introduced another finger, making her legs shake and pussy tremble.

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