Looking for a yaoi about two coworkers who start going out. One is a short and dorky uke and the other is seme and the opposite. There’s a scene where the uke tries to seduce the seme by saying he’s hot and the seme turns on the AC. There’s also another guy who initially pursues the uke but ends up dating the company president (who’s his seme). The president’s assistant also catches them fooling around in bed when he goes to wake him up in the morning.
Honestly I'm not a huge fan of Tessia x Arthur but with the most recent chapter, I was curious about King Grey's romantic history since he is actually an elderly man, so I figured he's probably had experience. I looked up the webnovel and in the corresponding chapter, he noted he used to physically indulge himself when he was Grey, though I think I remember people claiming he never went past kissing when he was Grey.