Why did my boyfriend stop kissing me? 17F and 17M

we have been in a relationship for 3 months, me (17F) and him (17M). The first time he kissed me was on his initiative about three weeks after we revealed our feelings to each other. since then, every time we met, he would kiss me goodbye, they were simple but really good kisses. he just wouldn't kiss me in front of his parents, which is why I understand that I'm not comfortable around parents yet. But since then, he stopped kissing me at all, everything else is great, he loves me very much, he takes care of me, but when my love language is physical, I miss it a lot and I don't think that a relationship could be without kissing at all. What to do?