I feel like that too, like... you dont need to describe it that well or even make a cg for that.... But I guess thats what please the majority of the people who play these nsfw games...
Hell, even a kiss or hand holding scene with Valos would be good to have before we see [spoiler] the other dragon giving him sloppy[/spoiler]. I'm not gonna have hardcore romantic feelings for this dragon when hes getting it on with other dudes, before we even had a chance to talk to him about it. The hot springs scene would have been a perfect time to even get in a quick kiss or just talk about feelings before that