Anal Slime Fanfic (18+)

Rimuru had almost forgotten about Shion. With the girl in his arms, he couldn't help but only think of Shuna. However, now that his mind thought back on Shion's-

Well, it's not like she's also on her period… right? "Is she… is she also on her period?"

Shuna frowned. "No."

"Then do you know why she's been so distant? I know you two are trying to be normal but something just…"

"That's because after that day you didn't try to talk to us," Shuna said. "We thought you were upset with us. And also there's my period, so I didn't try to get too close. She probably had her own reasons."

"Right…"

Rimuru got off the bed. Shuna almost reached out for him but stopped. She wanted him. She wanted him all to herself but she knew she couldn't do that. She didn't want to stop him either. "Go," she said. "She's probably crying in her room or something."

"She's not that emotional," Rimuru said.

"No, but she is for you."

Rimuru left.

The warm sunlight of midday didn't feel all that hot today. In fact, Rimuru was feeling a little cold. He was so busy thinking about himself and his emotions that he didn't even consider theirs. To him, all that mattered was he and what he'd done. But what about the girls? He should have thought from their perspective. Yet he knew perhaps that wasn't the right answer either. Then what was?

He didn't know.

Eventually, Rimuru arrived at Shion's door. It was locked. She wasn't here.

Raphael, where can I find her?

Three possible locations came to his mind with decreasing possibility. The most probable was the bathhouse. So Rimuru went there first.

Strike!

"Lord Rimuru!?" Shion jerked and stood, revealing the entirety of her being. "What are you doing here?"

"I was searching for you," he said, entering the private bath.

Shion slowly submerged herself and Rimuru sat just next to her.

"Why?"

"I wanted to apologize."

The warm water tickled at his skin and nether region. Barely body temperature, kind of steamy yet so thoroughly comfortable. 

"For what?" She mumbled

"I don't know," he said. "And I'm sorry for that too. I thought you guys were upset with me but I guess you thought I was upset with you. I'm not. I just didn't know how to approach you two after that… I thought I hurt you."

"You didn't," she said. "It felt good. I was a little disappointed though."

"Disappointed? Why?"

Shion stared Rimuru in the eyes, held him and then closed in, planting a firm kiss on his lips. But she didn't stop. She kneaded at his lips, slowly sliding her tongue in there, playing with his and finishing up the kiss with a smile. "Because you were so focused on her. I was a mere afterthought."

Rimuru's heart thumped and face heated up a bit. "Is there any way I can make up for it?"

"Yes," Shion said, parting her legs and revealing her precious womanhood. "You can." The temperature was good but it tickled her almost making her squeeze her pelvic muscles, almost giving her that sensation she was craving. Almost.

Rimuru's member arose from its slumber, ready for some action. "Alright then-"

"Can you," she said. "Do the same thing to me?" Her cheeks flushed, as did her body. Breath slowly picking up pace.

Rimuru's dick transformed into a flexible double and his fingers warped into tentacles. "I'll be gentle."

"You don't have to," she said, planting another kiss.