''Ah~'' Reiji groaned out softly, trying to keep his hips from stuttering. The male honestly was in complete and utter bliss. 

''M-Mmm...~ You're good at this...'' He whispered upon feeling you take more of his length into your mouth. 

Reiji sat on one of the chairs within his lab, his head tilted back and both of his hands buried deep into your hair. His glasses on the head-side table and moans of bliss leaving from his lips on repeat. 

You knew that the male had fallen into heat, but you had made no attempt to offer him helo unless he asked you politely. 

And low and behold, the male actually did ask you. He pleaded for you. Now here you were tending to his hardened and sore length whilst all he could do was moan in bliss. 

Usually, he was rather reserved when it came to letting his voice out. especially if hus brothers were in the manor, but he was just too far gone. The way that your wet caverns took him in and the way that your hands toyed with his base, he was in absolute pleasure. 

Every now and then you would pull back and suckle at his tip, allowing your tongue to swirl at the tip and collect the precum that was beginning to pour out frequently form his length. 

''A-Ah...~ More... Take more of me...'' He mewled, pushing your head further down. When he felt his tip pressing against the back of your throat, he couldn't hold back any of his noises, especially when you started to hollow your cheeks.

The male lost it and arched his neck, his eyes half-lidded and his parted lightly. ''Y-Y/N... Mmm... I'm going to....'' 

He couldn't respond, his eyes rolling back slightly as he released deep into your mouth. Shakily he placed his hand loosely over his mouth, moaning in utter bliss.

''Mnn...~ You look so vulnerable like that... Don't worry, I'll tend to you till you're satisfied...~''