One after the other!

"...you sure you're okay with this?" Touma asked hesitantly. "Aren't you a nun?"

Index shrugged. "Yeah, all those things about chastity are just human superstition and bullshit in most universes. Gods don't particular care what we do with our bodies, unless we're bringing harm to others. Why should they?" she asked. "The Lamp spelled that out for me in no uncertain terms."

"Then... Could we do a blowjob or something?" he requested, blushing, but honestly, it was way too tempting to pass up.

"Of course, Master!" she gushed, clapping her hands together in delight that he was letting her do something for him. She tilted down, still floating, so that her upper body was almost parallel to the ground, her tail where her ass should be raised slightly, and with her nimble, slender fingers, started to undo his fly. She pulled out his erection, staring at it for a moment, just basking in the presence of her owner's penis. This was the primary instrument through which she would be serving him, so it held incredible degrees of importance in her new world.

She then extended her tongue towards it, licking the head, moaning at the taste. "Unh..." he grunted, surprised at just how good it felt. She smirked mischievously as she engulfed it in her mouth and began to slowly bob her head up and down on it, placing her hands on his thighs.

He placed his hands on her head, shivering. It didn't take long for him to start feeling the build up of his climax. Being a virgin meant he didn't have the stamina to last. Even the times he had masturbated could not prepare him for her exquisite mouth. "Mmm," she moaned, her tongue moving over the slit at his tip within her mouth. She could taste his precum, and was thrilled by it.

Before long, his manhood throbbed, and with a loud groan, his release exploded out, filling her eager, waiting mouth. "Oh... That was so good..." he panted as she started swallowing down his semen happily... Then another explosion happened, but not a good one... Especially since his front door was completely destroyed by it.

"There you are... Now come quietly, you- what the actual fuck?" a red headed man demanded as he entered the residence, staring at the surreal sight before him, Touma going pale as he realized that one of the mages after Index had somehow managed to track her down to here...