~Later~
Rias had just come out of the shower after a hard day of training. She felt that if they continued like this, she might have a chance. She just needed the sure thing that was Issei Hyoudou and the princess knew she would beat Riser. 'Still…I feel really guilty that I'm making Grayfia cheat on Onii-sama for my sake.' Rias thought with a solemn expression.
She was brought back to the real world when she heard a knock. "Come in." In stepped the woman who she was thinking about. "Hello, Onee-sama." Rias greeted.
"Rias." The beauty smiled at the girl before putting on her serious face. "Now would be the time to call him." Grayfia informed.
Sighing, she reluctantly pulled out one of her summon contracts and channeled magic through it. Her family's seal appeared in the middle of the room and Issei soon appeared in a flash of red. "Was wondering when you'd call me." Was the first thing that came out of him.
"Let's just get this over with." Grayfia said and walked up to him. "Please sit." She requested. Smiling, Issei did as commanded, his pants showing the tent of his member.
Just as she was about to kneel, he stopped her. "Not this time. This time, I want your pussy." Issei informed with a lewd smirk. He complemented his lover at the fake shocked look while also seeing Rias' glare after getting over the shock of his request.
The moment Issei said that, Rias was absolutely furious. "This was not part of the deal! You only said that she was to give you pleasure. Not sex!" Rias yelled.
"Exactly." He nodded. "While having her suck me off was amazing, I now what to fuck her." Rias' glare didn't lessen. "That is…unless you don't want me to join your peerage for whatever you need me for." 'Got ya!' Issei mentally cheered at her hesitant face.
'Damn it!' Rias cursed herself for not thinking of the deal fully. He had her and she knew it. The princess just huffed. "Just because you can't doesn't mean you will. Grayfia will never let you- "I understand." Grayfia's voice cut her off and made her look at the beauty with utter shock.
"No! Don't do this!" She begged her older sister figure. Said figure only smiled at her. "It's alright, Rias. Like I said last night. I will make sure you are safe. Even if I must be defiled by this man." Grayfia put some spite in her words while glaring at Issei.
'Wow! She's good at acting!' If he didn't have her under control already, he would have felt a chill go down his spine at her cold words. "You heard her, senpai. I'm going to enjoy this. My first MILF." He said with a lercirous grin.
Rias tried to leave but found the door locked. "Not so fast, Rias-senpai. I locked the door to make sure you watch me claim this dirty maid." Issei told the redhead with a dirty grin.
"Just let it go. Besides, he won't claim me. I love your brother." She did, but Grayfia couldn't possibly go back after experiencing Issei's powerful prick.
That filled Rias with some smug pleasure since she knew it was true. Grayfia loved her brother with all her heart. "Fine. Just get this over with." Calmly walking, she sat on one of the chairs in the room.
'I really can't wait to break that bitch!' Issei roared in his head with a lick of his lips that sent shivers down his maid slaves body. She knew that look and she also knew she would be in for a rough fucking.
Saving the thoughts of fucking the crimson whore later, he grabbed Grayfia by her wide hips and pulled her in a deep kiss that shocked the woman and Rias as the princess saw her put up a fight before giving in and kissing back. 'No!' It was her worst nightmare coming true.
Leading his whore to the bed, he slowly ripped off her shirt, her skin shivered in the air, before tearing off her pants. Pulling back, he smirked at her blushing face. "Seems this wife is horny for young cock." Issei noted, seeing her lewd panties having a nice wet spot.
"N-N-Never!" Grayfia shuttered, her voice a little weak with lust. "Uga!" Her voice soon cracked into a moan as Issei's member stabbed forward, running his length along her hungry lips while hitting her sensitive clit. Looking down, she saw her Master's cock resting between her mound with a mixture of anticipation and fear of being fucked in front of Rias. "I-I'll never let you claim me." The beauty continued the act.
"Really?" Looking deep into Grayfia's eyes with a dark look, he smelled her arousal hit the air. "Too bad, Devil." He hissed, his dark voice sending shivers down both busty Devils loins. "By the time I'm done with you, you won't even remember his name." Issei promised.
Grayfia gave him a glare. "Like you could! You're but a child! You're the one who won't be remembering their name." She said with fake confidence. It was hard for her to keep this up with his constant deep strokes against her mound. 'What was his name again?' The beauty asked herself, somewhat losing the memory of Sirzechs' name.
"I doubt that." Issei said and pushed her down, making her moan mewl as his cock was missing. "You're the one who's gushing like a fountain. Look at it, your pussy is practically welcoming me." The teen said, spreading her legs so she and Rias could see Grayfia's labia was twitching hard and somewhat spread open to receive.
Even Rias couldn't deny her arousal of seeing Grayfia's soaked cunt and Issei's aching member just waiting to penetrate her. 'I-I-I…can't help it.' Slowly letting herself go, she let one hand go to her heaving chest and other hand to lightly pet her mound. Her blush intensified when she saw his large cock lightly enter her mound.
"Ahhh!" Grayfia's voice became a scream when Issei shoved his hips forward, burying about four inches of his cock. Her well lubricated snatch helped ease her entry, along with the cum from their earlier session, but the tightness stopped him from going all the way. 'She really must like to be watched.' The brunette speculated as he would usually spear her to the hilt first jab. "I…I can't believe…it's inside me…and not the whole way! It feels like I'm being torn apart!" Grayfia said, her eyes beginning to glaze over.
Leaning in real close, he spoke loud enough so Rias could hear. "This is nothing. When I'm done with you, you'll be begging me to tear you up every day." Sending shocks of pleasure down both ladies spines, Issei pulled himself out before plunging his whole member inside her.
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