I didn't like the options either. There is way more to it than that. I did have a boyfriend who did his best, but he was really, really small. It's not that it wasn't satisfying, but it was just confusing because I couldn't always tell what was (or wasn't) happening. My husband, who I love more than my life, is bigger than is comfortable for me. So even though most people assume that the "does size matter" refers to small sizes, big sizes can be a disadvantage too.

So yes, size does matter but it would never be a showstopper for me.