they just ate grilled meat and it's hot enough that they don't need to sleep with blankets, it definitely stinks of meat and there's no way they're gonna do the SEX in that environment
nothing will happen since he isn't the "im a virgin sex master MC with potentially all the girls". Hes just a normal beta Japanese MC and must prove to the world and the readers he has no balls( Hes being way too sheepish about this business plan.).