Cowgirl problems

Em

So I've gained a little weight since the last time I saw my man and I've got huge hips, a big ass, and unfortunately a pudgy belly now. He doesn't care and I'm ok with the butt and hips but then belly I can't handle. He loves cowgirl and I'm so nervous about riding him with my stomach being out. Can anybody give me some tips on being more confident with this??!?!?!?