Personally, i'm not a jackhammer fucker and I like to receive the same as I like to give.
If a bottom cums while I'm fucking him, I would prefer that he just stop(.) - allow me to stay inside. His previous fuckings probably haven't left him to feel he can have trust that I won't move (and hurt him). I just want to enjoy the feeling of being deep inside him. As he relaxes we can pick up fucking again.
Same when i've shot into him (whether he's cum or not) - i'll go deep as possible and want to stay there while my cum continues to flow into him. I want to leave every drop in him. If we lay still, and i slowly soften, his hole should tighten around me.
If we remain in this position, when he/we are up for more motion, i'll start to get hard again and we can do it all over.
If fucking is not comfortable for him, it's not comfortable for me.