I remember reading a yaoi a while back with a college setting and both the seme and uke were in the biology department. The uke was the senpai and really quiet I think? The seme was younger and straight I think? I can only remember vague details, like that there was always candy in the uke’s lab coat and a scene where the uke shows up and the seme had stayed over night in the lab? This is not a lot of detail but any help would be appreciated!

Maybe Kunkou Schale?

Edit: Or perhaps Toshishita Kareshi no Renai Kanriheki?

Sick

Ohhhh that’s it! Thank you! It was Sick I was thinking of!