After Sato crossed the line with Mirajane, nothing could stop them anymore, and she was like a female succubus who would suck his essence until nothing was left behind.
Fortunately, he was strong enough, but then, when he thought to rest, and also tried all other abilities that he got from the other him in another world, Lisanna, his little sister-in-law, invited him out on the quest.
Yet, he had to say, Lisanna had grown up.
While Lisanna's body was on the petite side, it was impossible to hide the womanly qualities within her, whether it was plump, white thighs, which she displayed over her shorts, or her large breasts that were round and soft with deep cleavages that were shown on the collar of her t-shirt as she leaned forward, begging him to go with her, it made his body uncomfortable, especially when he thought of his sister-in-law this way.
However, Lisanna, who noticed his gaze on her body, felt her heart skip a beat as it was filled with excitement.
"Okay, right? Please come with me, Onii-chan! I am not sure whether I can do it alone!"
"....." Sato.
It was okay if she just begged him, but she also had to cling tightly to his waist, pressing her face against his lower body, rubbing it carelessly as her soft breasts pressed against his thighs.
"Mirajane, what do you think?"
Fortunately, Mirajane was by their side, or else, he was afraid that he would react already, and by then... let's not mention it.
"Well..." Mirajane appeared helpless as she put her chin on her palm. "I can't help but worry about Lisanna, after all, and she also goes out with a newbie, so... I think it is better for you to come with them."
It was old news that Mirajane was protective of her little siblings, especially when they had accompanied her, staying with her despite transforming into a devil, so when she heard that Lisanna wanted to go on the quest, it made her lose hope for a while, but as Lisanna kept begging, in the end, she could only agree.
Lisanna wasn't young anymore, and if Mirajane kept Lisanna by her side all the time, what was the difference between Lisanna and a domestic canary?
Mirajane loved her little sister, but as she knew that Lisanna wanted to improve, as an older sister, she had to support Lisanna, right?
"....."
Yet, Sato was at a loss for a while before he pulled Lisanna away from him, slipped, and came to Mirajane. "Are you sure?"
"Yes." Mirajane nodded at his question. "She wants to go out with that newbie."
"You mean Lucy?"
"Oh, you remember her name?"
"...what do you mean by remembering her name? I invited her to the Fairy Tail, and she became a member of the Fairy Tail. How could I have amnesia about her?"
"No, you have to have amnesia about other women!"
"..."
As her eyes grew demonic and even quite obsessive, Sato was at a loss for a while, but he decided to go on. "What about Lisanna? She isn't young anymore."
"What's wrong with Lisanna?'
"...what if Lisanna attacks me?"
"....."
"Hahaha...."
Mirajane laughed at his question.
"....." Sato.
"You are so narcissistic~!"
"...what can I say? I can seduce you, after all."
Mirajane blushed and then lightly hit his chest. "It should be fine. I believe in you." She then looked at Lisanna and asked, "You won't do anything weird to your brother-in-law, right, Lisanna?"
"....."
Lisanna blinked her eyes innocently as she nodded. "Of course, Mira-nee~!"
"See?"
"....."
Sato wondered how Mirajane had so much trust in Lisanna, or was it her sign telling him that it was okay to hold two sisters at the same time?
However, he also thought that he might be thinking too much, especially when they had grown up together, and he was also more or less ordinary before, so everything would be okay, right?
Then, what about Lucy?
"Then, come on! The faster you go and finish your work, the faster you go home, and by then..." Mirajane clung to him tightly as her hand tightly grasped his bulge while whispering a lustful message, "When you return, I will reward you well, so take care of Lisanna, okay~?"
"....."
By then, Sato could only nod, but it seemed that Mirajane never thought of Lucy as an opponent.
However, considering how Lucy, despite being a beauty, often showed how disappointing she was, it seemed it was quite silly of Mirajane to think of her as a threat.
Yet, even if Lucy's personality was often quite pathetic, once again, she was a great beauty, with blonde hair that could be styled in many ways; sometimes, it was a twintail, a ponytail, a simple straight, a side ponytail, or even a bun.
Moreover, her body was also plump and extremely lewd.
Lastly, she was easy to push.
Then again, unlike Sato DxD, who was a playboy, Sato Fairy Tail felt that he would be okay.
"..." Sato DxD.
"Okay, I need to go back for a bit since I have to work. Be careful on your way, okay?"
As Mirajane kissed his lips, even bit his lips, sucking his lower lip lewdly, she glanced at Lisanna before she left, as she lightly rubbed him.
"..."
Why the heck did this woman make him hard when she didn't even try to take responsibility for it?!
Yet, when he thought to calm it down for a while, as soon as Mirajane left, Lisanna quickly hugged him from behind.
"Yay~! I can go with Onii-chan~!"
"L-Lisanna!"
Yup, her hands were on his erection, and like her older sister, Lisanna grasped them tightly, yet in a more playful way, seemingly curious about the part of her brother-in-law that she had grown used to seeing sometimes.
"Geez, it's so big now, Onii-chan~!"
"Lisanna—"
With a delivish, mischievous smile on her face, Lisanna was like a naughty little devil, trying to toy with him, but as Sato was about to pull her hands away, and stopped her from doing an excessive joke, she moved her hands first, before looking at him naughtily, and said, "Come on, Onii-chan. Lucy is waiting for us."
"....."
Like her older sister, who just left him after he had reacted so strongly, Lisanna also did the same.
As Sato took a deep breath, he felt like Sato DxD's masochistic tendency started to affect him.
"....." Sato DxD.
Regardless—
"Come on, Lucy! Let's do our best!"
"O-Oh!"
As Lucy and Lisanna clung together before him, Sato looked at the two, who put a similar twintails in a daze, before he looked at Lisanna, who smiled at him with a naughty smile, and licked her lips as she saw, thinking that this quest would be harder than he had imagined.