Piss kink

So me (f20) and my bf (m21) have recently explored a piss kink and while I enjoyed it and want to do it again he doesn’t want to do it again. He said he enjoyed it but thinks it’s too weird to do again. He pissed inside me but not all at once because he was pressing in too hard. I almost orgasmed from the pressure and warmth and want to try it again to see if I would. I think if he did it all at once and back out a little so it can leak out it would be better but again he doesn’t want to try again and I don’t know how to convince him it’s not that weird. At least he doesn’t think it’s gross because he did pee on me in the shower after as well