Always doing it with a shirt on ? Help me !!

Ok so me and my boyfriend have had sex 3 times now and I've always had my shirt on. The first time we did it he lifted my shirt and bra to see my boobs obviously but that was it. After that he never lifted my shirt or asked me to take it off. I feel like he expected more. All of my bras are push up and I've had them for years. I have lost some weight so they don't fit in the cup exactly how there suppose to. Ive been trying to save some money to buy new bras. But I wanna get pink bras and there expensive lol. I've also been meaning to ask him about it but I feel like it's to weird? I don't know what to do anymore 😩. HELP ME !!