Hi, folks! I’m looking for a yaoi manga I read about a cute couple. I don’t remember the name (sob) but a scene that sticks out - the uke (I think) is a scrawny guy so he ends up with the idea to start running to build up his stamina (for sex lol). He gets stubborn about it and won’t listen to the seme and ends up tripping on a run and eventually getting rescued by the seme anyway. If you have any leads, I would really appreciate it. Thank you so much for reading and your consideration!

Finally found it again!! It is "Konna Koi ni Naru Nante" by Haruyama Moto