In Mezo's dorm room

Mezo was sat on his bed, reading a book detailing the anatomy of birds until a knock was heard on his door.

Mezo: (Who could that be? It's 10:30 at night...)

Mezo places his book on the floor and walks to the door- opening it only to see Fumikage.

Fumikage: "Sh-Shoji..."

Mezo: "Tokoyami? What's wrong?"

Fumikage clutches the seat of his pants as a red tint appears on his cheeks.

Mezo was perplexed by his boyfriend's disarranged disposition, so he instinctively escorted the black bird inside.

Mezo: "What's the matter?"

Fumikage slowly removes his hand from his pants, revealing a massive bulge.

Mezo's eyes widened and he blushed whilst staring at Fumikage's boner.

Mezo: "Are you... hard?"

Fumikage: *grunts* "Y-yes."

Mezo: "Can I touch it?"

Fumikage gasped and looked up at Mezo before nodding.

Mezo, without removing Fumikage's pants, rubs the black bird's dick, forcing a moan-like grunt out of his gothic boyfriend.

Fumikage: "G-gah~!" 

Mezo: (I never pegged Toko for the sensitive type.)

Mezo continued teasing Fumikage by rubbing on his erection before finally pulling down his pants and grabbing the black bird's dick.

Fumikage: *gasps*

Mezo begins stroking Fumikage's dick and forcing multiple moans and groans out of the shorter boy's mouth. 

Fumikage felt his body heating up as precum seeped out of his penis. Mezo noticed this and pulled down his mask.

Fumikage: (Is he actually gonna...?)

Mezo opened his mouth and swallowed Fumikage's entire length before bobbing his head up and down- sucking the black bird off.

Fumikage: "A-AH~!"

Mezo: (Who knew Tokoyami was capable of making these kinds of sounds?)

Fumikage released several moans of pleasure as his taller boyfriend continued sucking him off. Mezo's own dick began stiffening, creating a bulge in his shorts.

Fumikage: (Shit- at this rate I'll definitely cum!) "F-fuck~"

Mezo: (Damn it! Now I'm hard.)

Mezo felt a moistness in his mouth, coming to the conclusion that his boyfriend was on the verge of climaxing.

Fumikage: "S-Shoji! I'm gonna-"

Fumikage's sentence was cut off by a sudden jolt of electricity. He let out his final moan, signaling his ejaculation.

Fumikage: "I'm c-cumming~!!!"

Mezo's eyes widened before Fumikage's cum painted the inside of his mouth.

Mezo swallowed the shorter boy's cum and wiped his mouth, surprising the black bird.

Mezo: "Mm~ I've always wondered what you taste like, Toko~" *smirks*

Fumikage, flustered by Mezo's unusual seductiveness, blushes and avoids eye contact with him.

Mezo abruptly pulls his shorts and underwear down, displaying his large dick to Fumikage. The black bird becomes somewhat mesmerized by the taller boy's penis, even going as far as touching it.

 Immediately after Fumikage grabs Mezo's dick, a tingling sensation courses through the octopus-like boy.

Mezo: *gasps*

Fumikage: "Tell me Shoji- what do you want me to do?"

Mezo: *huffs* "R-ride me..."

Fumikage accepts Mezo's request and takes his pants off before spreading his ass and lowering it on the tip of his boyfriend's dick.

Mezo lets out a slight gasp as his dick makes contact with Fumikage's ass. The black bird lowers his hips until the taller boy's manhood is completely inside of him.

Fumikage groans before adjusting his body and trying to get comfortable.

Mezo: "Are you ok?"

Fumikage: "Y-yeah."

Fumikage eventually begins rocking his body, feeling Mezo's dick grind against his insides.

Mezo: "M-mm~!"

Fumikage: "O-oh~"

Fumikage found a rhythm and began bouncing up and down, moaning with each thrust.

Mezo was almost completely lost in the pleasure- feeling as if his shorter boyfriend was in control.

Fumikage: (This feeling is amazing!) "H-hah~!"

Mezo: "Ahh~!"

Each time Fumikage crashed his hips down, Mezo's dick pounded his sweet spot, forcing numerous moans to escape the black bird's mouth.

Fumikage: (I'm usually not too fond of physical contact, but with Shoji it's different...)

Mezo: "F-Fumi! I'm close!"

Fumikage gasped as Mezo's cum rocketed upward inside of him, and without warning, he reached his climax as well- squirting onto the taller boy's shirt.

Fumikage spread his ass cheeks and rose up, Mezo's dick slowly exiting his hole. The two then lied down, cuddling one another and breathing heavily.

Mezo: "That was amazing. I never knew you could make those kinds of sounds Tokoyami." *smirks*

Fumikage: *blushes* "W-well... this was a very surreal experience, but I'm glad I got to do it with you."

Mezo: "Mm, same here."