is it possible to be too big?

Britni • I'm a Capricorn, book nerd, animal lover, traveler, bisexual, i love helping people and making them laugh 😂💖
Hello, so mi novio has a big...thing, which is all fine and dandy except at the beginning of sex it acts like it doesn't want to fit inside me. Obviously it does eventually and all is right with the world eventually lol but is there sonething i'm doing wrong???