I feel that the living quarters where Asterion serves the MC most often would be the best setting to get LEWD. I personally imagine that Asterion would be the top for the MC mainly because of the size difference, but it should be a power bottom situation, because he's still submissive but he gotta be a top with all that MEAT. Things he would be into might be bondage; restraints or leashes. With the option to pull his tail in the basic interactions, I would assume that we could do some rough things with him, pull his tail, use his horns as handles (in various positions), spankings, biting, things that could leave a mark. In my run, I would love to see a power bottom position, because that's mainly my play style. Teasing him would be pulling his tail or petting his body; his stomach or chest. Something he could tease the MC with could be: picking them up, or being really dominant, calling us master or asking for punishment. I would love to see: Sucking/ playing nipples (maybe even milking) , him with a cock ring, lots of fondling, cuddling, and sucking his big dick.
10/10 game! PLEASE LET ME MAKE THE BABY BOY FEEL HAPPY I DON'T WANT HIM TO HURT NO MORE JUST WANNA CUDDLE AND TELL HIM EVERYTHING IS OKAY