I can't really remember the plot but I only remember one scene where they are doing it. The ukr is tied up to a chair with his legs spreaded open(tied up to the legs) and the seme is doing oral and practically eating him up! It is soo hott! This scene is happening in a hotel. I think the seme is a bit kinky like a bit sadistic or so, but I can't really remember. I only remember this because out of the hundreds of yaoi manga I've read I have never come across a scene like this

I know this is probably not that helpful. But please if you know tell me! Thanks so much
And i know is that the manga has good drawings

Is it kanpeki na koibito (chapter 2) by natsumizu ritsu?

A good novel tells us the truth about its hero; but a bad novel tells us the truth about its author. - G.K Chesterton

YES! THANKYOU SO MUCH! I didn't expect anyone to be able to find it! THANKYOU!!!