Hothouse saidIt's good for couples to be GGG - good, giving, and game - in the bedroom. Meaning, willing to go along with their partner in sexual requests that the other may have - as long as it's not a deal breaker activity. They may not get much, or anything, out of the activity, but participate to please the partner.
Having said that, if you're asking your partner to keep his hands off his dick while you're fucking him with the goal of his achieving a hand's free orgasm, I'd think that your partner should be willing to go along with you - as long as you're not asking him to do this every time you fuck.
If you don't want him to ever touch his dick, then you're trying to control him and that is asking too much.
So, yeah, every now and then is fine, but you also have to be GGG and do some things he likes that you're not as into.
Same answer I would give. And I've been in these situations, I think we all have. Among those I didn't like, but played along as best I could, were "talk dirty to me" and elaborate role playing.
I don't have a filthy mouth, I don't even think filthy, really don't know what I should be saying, so the whole thing is a distasteful sham to me. Plus it distracts me, not good at multi-tasking anymore, trying to think of suitable dirty phrases I'd never use otherwise. He needs to be content with passionate grunts, gasps & sighs, those I can manage. LOL! But I'll still try if he asks.
But role playing is the worst. I had one BF, a professional actor himself not surprisingly, who'd practically script our encounters. They usually involved a pretend locker room, me the guy just coming from the (real) shower wrapped in a towel, him in gym attire who starts a conversation as I dry off and (try to) dress as he comments on my junk. But he was also the scene's director, and get all mad if I didn't deliver my "lines" right, really too much controlling hassle for me.
BTW, love that GGG - good, giving & game.