Oking for yaoi where there is a guy in university I think he's working at laboratory and ...

Oking for yaoi where there is a guy in university I think he's working at laboratory and kinda forgets to take care of himself and seme brings him food and stuff,one day some professor tries to harass uke a and send can't wait anymore and forces himself on uke and then kinda keeps his distance then uke invites him to his family house which now belongs to his sister and their make up and some smut is going on and the next morning sister finds out and turns out she's a fujoshi