You can be even more cruel than you already are. If you say to him, in a calmed but self-confident tone, that his little penis is useless, that he fucks like a girl, hat you need a big man, with a big cock, who will know how to use it to fuck you… for sure you will get his attention immediately.
Explain to him that you are going to tell to two or three of your best girlfriends some private aspects of your sexual life… Things like that he has a small dick, that you put him in chastity, that he has controlled orgasms, that he is a cunt-licker, that you love fucking him with the strap-on, that you make him wear knickers, that he must lick you clean after sex… all that will be very humiliating to him, but will reinforce your authority, he must realize that you are serious about it.
After three or four months of chastity treatment, pegging, discipline and humiliation… Being self-confident, firm, strict… he will stop resisting and fighting.
He will bend over for you, will hug and hold you after you have fucked him with love, and will desperately need to lick your cunt to give you pleasure and thank you for what you do for him.