How can i naturally grow bigger breasts?

Okay well, first of all, I'm actually the jealous-type. Well, I've never been until I fel in love with my bf. He would tell me how some of my friends are hotter then me, or like..how he likes girls with busty breasts or until they are atleast a C36. Im only an A36. I was perfectly comfortable until how he started telling me how every man's dream is a busty girl with a skinny waist. well...I have the skinny waist, but...im really small in breast sizes, and because of my butt and large hips, I feel like my body is unbalanced. This one woman sent him a picture of her boobs before we started to date. he still currently has that picture. She is exactly a C36, shes skinny, and everything i feel like He wants. I'm so small! and also...i realized i have inverted nipples? they arent all that obvious,but i still have them, which make me more self-conscious about my breasts. I feel ugly when im naked. When he found out im self-concious about the,, thats when he started saying"Oh, I like small breasts.." Which i KNOW is a totall lie! He told me the first time we had sex that he liked my body, so i was proud until he told me he likes big breasts. Then alot of my confidence just went away. I mean he doesnt talka bout hot girls infront of me, but i know he thinks about them ALOT. He asked me for a breast picture,but now i dont want to send one to him because i feel so small,ugly, and just...idk. I'm just so self-concsious about my breast size now. Is there any natural way i can enlarge them some how?