1. For position, probably a traditional one that allows the CG(s) to include the MC's dick, Ass-terion's ass and dick at the same time. Personally, nipple play, rimming, lactation would be most appreciated. Since we don't want to hurt Asterion, let's pamper him and be gentle to him
2. For now, I can only think of kabedon-ing him, squeezing his butt and petting his tail
3. Grinding his glute in the MC's crotch, or squeezing his own boobs and cheeks in front of the MC (you know which cheeks I'm talking about)
4. An erotic massage room, with Asterion as the massager
5. No, just ask Asterion before doing anything to him
6. Put him in a leash or tie him up (in their quarter only, thank you very much)
7. Pass
8. As mentioned above, nipple play, slammed against a wall, having his tail played with. Oh right, forgot about the musk