Oh hell yeah!

"Alright, let's bathe together," Kazuma grinned. "Though I'm gonna want you to rinse off a bit first before we outright share water..."

"Fine," Megumin pouted with an eye roll.

"What? Toad slime is gross!" Kazuma replied.

"Some guys would pay good money to embrace a slimy girl," she noted as she stripped down.

"Yeah, well I'm not one of them," he replied as she got naked, then got into the tub, running some water over herself before plugging the drain until most of the slime was off.

"Okay, that's good enough," she nodded, before closing the drain and dumping some soap into the tub as it filled up with hot water. Kazuma proceeded to strip down himself, and followed her in.

"Ah, nothing like a hot bath during the cold winter," Kazuma sighed contentedly. Neither one had bothered with a towel, since they were sexually involved.

"What about a hot bath during the cold winter with a sexy girl?" Megumin teased.

"...you got me there..." Kazuma replied. "By the way, do you think it's alright that we left Yunyun out there alone?"

"Oh, we'll certainly see her again... She never would shut up about the whole rivalry thing," Megumin shrugged. "Honestly, I would love to have her off my back... But you also want her in the party..."

"Tell you what, I'll try challenging her myself, and see if she won't transfer the rivalry to me," Kazuma sniggered.

"You actually think you can take her?" Megumin asked.

"...I'm sorry, who did you take a leaf from to beat her not even an hour ago?" Kazuma asked, raising an eyebrow.

"...touche."