How can I get my husband to support my breast reduction surgery?

We had three kids in quick succession after getting married and I put on a lot of weight. I was always thin before and had very small breasts only B cups. So I started taking Ozempic to lose weight and its worked, I've now got that flat stomach again and hsve lost 3 stone. I've list weight everywhere except my boobs which are now a G Cup, im only 5ft so they look ridiculous. My back is in agony at the end of the day working and looking after kids. I've tried discussing a breast reduction with my husband but he's dead against it and a lot of the time when im trying to have a conversation about it he gets turned on and its end of discussion.

Updates
1 mo
I've decided to keep them at least for a few years due to the cost of a reduction and the joy my husband gets from them and maybe in the future we might have another child and I want to breast feed. Im going to try weight lifting exercises, massages and the sauna. Maybe they will shrink on their own.
How can I get my husband to support my breast reduction surgery?
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