Konosuba - The Path of Explosions

Here we find, Kazuma Sato and Megumin wandering in the woods as Kazuma has been dragged along to help Megumin with her explosion magic training.
"Can't you do this by yourself?" Kazuma asked.
"If I do that who's going to carry me home? After one shot I can't move anymore." Megumin explained.
"Is she going to make me do this every day?" Kazuma thought to himself as he started crying at the thought of it.
"Ah, this should do" Megumin said as the pair came across a large boulder out in the open.
"Yeah, you shouldn't get in trouble with the guardsmen this far from town" Kazuma agreed.
"Crimson-black blaze, king of myriad worlds, though I promulgate the laws of nature, I am the alias of destruction incarnate, in accordance with the principles of all creation. Let the hammer of eternity descend unto me! Explosion!" Megumin chanted as her magic manifested and created a giant explosion, blowing the boulder into a thousand pieces of rubble. Megumin then collapsed to the floor as the one spell takes all her energy to cast. Kazuma would then proceed to pick her up and carry her home via piggyback. The pair would continue this routine for another week, until.

"Explosion!" Megumin shouted as she collapsed to the floor again.
"Hmmm, the shock waves practically reverberated through my flesh and bones, and yet the delayed vibrations of the air seem to stroke my skin. Nice explosion" Kazuma praised as he put his thumb up.
"Nice explosion. You've come to understand the path of explosions, Kazuma" Megumin said as she struggled to put her thumb up.
"This was kinda fun but I feel like I'm not getting much out of these trips," Kazuma thought to himself as he eyed up the exhausted and motionless Arch Wizard.
"Heheh, I should have a little fun before we return," Kazuma said to himself as pervy thoughts started to cross his mind.
"K-kazuma, why are you staring at me like that?" Megumin asked, concerned about what her partner had in mind.
"Oh, nothing much just this," Kazuma said as he started ticking her sides, she couldn't stop laughing and was unable to defend herself.
"Hahaha, S-stop it Kazuma" Megumin begged. Kazuma then slowly went lower a lower until he reached the end of her thigh-length dress and lifted it up exposing her black panties.
"K-Kazuma! What are you doing you pervert!?" Megumin exclaimed in embarrassment as she couldn't cover her underwear.
"Oh, it's the same pair I used my Steal ability on" Kazuma examined his partner's underwear. He then flipped her over onto her stomach, making sure her panties were still on full display.
"What are you doing, Kazuma?" Megumin muffled through the dirt.
"What's that I can't hear you, Megumin" Kazuma laughed as he eyed up the helpless Arch Wizard. He then grabbed a hand full of her black underwear and pulled them up hard.
"Ekkkkk!" Megumin screamed in pain and embarrassment.
"Oh, you make up for that flat chest of yours with a nice ass" Kazuma complimented as he smacked her wedgied behind, making her squeal more and more. Kazuma tried to think what else he could do until he looked up at the tree in front of them.
"Oh that's perfect," Kazuma said with an evil grin across his face. He lifted the motionless Arch Wizard over his shoulder and carried her over to the tree.
"Where are you taking me?" Megumin whimpered. Kazuma then hooked her black panties on the highest branch he could reach giving her a hanging wedgie.
"Perfect" Kazuma cheered, proud of his work.
"K-Kazuma, get me down, I-I can't move you pervert" Megumin demanded as she dangled by her underwear with her cheeks fully exposed.
"Don't worry I'll pick you up tomorrow" Kazuma said as he started heading home.
"W-what!? Wait, Kazuma! Kazuma! Don't leave me here! Kazuma!" Megumin yelled in desperation.