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Gen's hips snapped forward, his thick cock diving deep into Senku's ass. The room was filled with the wet, slapping sounds of flesh against flesh, and Senku's desperate moans. Gen leaned over Senku's sweat-slicked body, his teeth grazing Senku's ear as he growled,
-"You're taking my cock so well, Senku. You're such a good boy for me."- Gen hissed snapping his hips forward. Senku whimpered, his fingers clutching at the sheets beneath him.
-"P-please Gennngh... please let...me cumhm.."- Senku whined in needy voice, wriggling his hips to feel Gen even more Gen chuckled, a low, cruel sound.
-"Not yet, my dear. I want to feel that tight little ass of yours milking my cock first."- Gen purred his voice sweet as poison. He pulled out slowly, then slammed back in, making Senku cry out. He wrapped his hand around Senku's cock, stroking it in time with his thrusts.
-"You're not allowed to cum until I say so, Senku. Understood?"- Gen growled and lightly slapped Senku's ass cheek, making Senku let out a choked moan. Senku nodded, his body trembling with the effort of holding back his orgasm, his eyes now welled up with tears.
-"Y-yes Gen... I ahn!..understAhnd."-Senku tried to form words without moaning. Gen smiled, his hips moving faster, his cock pounding into Senku's ass with brutal force. He could feel Senku's body tensing, could feel the way Senku's ass was clenching around his cock, trying to milk him. But Gen wasn't ready to cum yet. He wanted to draw this out to make Senku beg for it. He leaned over Senku again, his teeth nipping at Senku's shoulder, and slowly moved next to Senku's ear.
-"You want to cum my love? You want to feel my fat cock filling you up? You want me to pump every single drop of cum I have into you?"- Gen moaned straight into Senku's ear. Senku moaned, his body shaking with the effort of holding back.
-"Yes! l-let me cum! ..want AH! to feelnh..your cock i-inside!! Want..nhh..Gennghnhss"- Senku slurred his words out making Gen gulp at that, but he didn't stop moving his hips. Senku felt like he was going crazy at this point. Gen was pretty serious about not letting Senku cum. Whenever Senku's hand tried sneaking down to jerk himself off, Gen would take Senku's hand, kiss it and put it right above the scientists head. Or when Senku would try to roll his hips to chase his release, Gen would lay slowly on Senku, pinning him down with his weight so the genius couldn't move. Senku was frustrated by it and he let out angry moans, but Gen just chuckled and kissed him. Senku tried saying something to Gen, maybe beg again, maybe say how good it feels, but he couldn't get the words out. Gen chuckled and leaned down to kiss Senku's damp forehead before leaning back to look at his lover. Gen chuckled.
-"What is it sweetie~? Ready to beg again~?"- Gen teased and slowed down his thrusts now grinding against Senku. Senku groaned at that. He put his arms around Gen's neck and pulled him down for a kiss. It took Gen by suprise, but he quickly took control over the situation, turning the sweet, innocent kiss into a heated battle of tongues. When Gen pulled back to catch his breathe, Senku made his last desperate move. His eyes were full of tears, and he looked at Gen with the most innocent look he could with his glassy eyes, his lips formed into a pout, and he sniffled softly. He pulled Gen down again but now nuzzling his forehead against Gen's cheek, then he left quick, soft kisses on Gen's cheeks and he tightened his grip a little, he looked at Gen again.
-"Ge-nnh...p-pleaase..I-I want..to..mnhh..cuumm."- Senku begged again, hoping Gen would give in like he always do. Gen's heart skipped a beat, he knows that look. That innocent look that can get Senku anything he wants. Gen gulped, then smirked.
-"Heh..Thought you can have your way like always dear? Well...not this time♡~"- Gen's words made Senku frown, but then Gen's hips started moving again, faster and harder then before, making Senku moan pretty loudly. Gen chuckled and continued pounding Senku's ass. Finally after what felt like forever, Gen's breath hitched, and his moves became sloppy. Senku was so lost in pleasure, his eyes were unfocused and
his tongue rolled out of his mouth. Gen began chasing his sweet release, messily fucking Senku, watching as his cock went in and out of the genius, which seemed to be putting him on his edge. -"Senku. I'm going to cum...deep inside you"- Gen bit Senku's ear and with one final thrust, Gen's hips snapped forward, burying himself deep inside Senku, as his seed spilled inside, Senku's own dick shot out ropes of cum coating his stomach and he let out a long satisfied moan, his eyes rolling into the back of his head. After both intense orgasms, they were regaining their breaths. When Gen calmed down, he pulled out of Senku revealing his limp dick. Senku whined a little at the loss, but then gasped when he felt Gen's cum leaking out of his hole. Gen smiled and kissed Senku's head.
-"You were such a good boy Senku~ now come here!"- Gen leaned back and opened his arms waiting for Senku. Senku grumbled but eventually crawled over to Gen. He knew he should be angry at Gen, for all the teasing. He knew he should be yelling at him or giving him the cold shoulder. But the warmth of Gen's embrace melted his anger away. He let Gen hold him, and he layed his head on the mentalist's shoulder, sighning softly. He was tired after their intense session. He wanted to bathe and go to sleep, he closed his eyes and cuddled closer to Gen. Gen didn't say anything, just smiled and held Senku close, prepping his whole face with kisses. They'll bathe later. Now It's cuddle time.
Bonus: next morning
-"Senku please don't be mad! I apologized like 10 billion times!"- Gen begged on his knees in front of Senku. Turned out that Senku was still pretty salty after the teasing. Senku on the other hand, crossed his arms, side eyed Gen, and then puffed up his cheek looking away. He was giving Gen the cold shoulder since morning. Now Gen has to think of a solution to make it up to Senku!