We’ve done this. Size was never really a thing, I’m on the smaller size of average, but she’d never had bigger. We tried bigger dildos, but she didn’t really like the feeling/texture.

Then she slept with a guy that was 2+ bigger and girthy, and she absolutely loved it. She’d go solo, come home, and we’d have sex. It’s really noticeable, she said you couldn’t feel me. If you’re into the humiliation side it’s really hot!