So my girl and I didn't want to get a big difference, we didn't try a monster cock extender or a dino dildo, we tried a bit more of an inch so that the difference wouldn't really make it look like I have it small.

We did it, and we enjoyed it. I didn't feel outclassed a lot, the difference in size was small, but she felt great, and she said she wouldn't need a bigger size.

For me, let the psychological part aside, it was comfortable to wear, it blend in with my cock pretty well. She felt no big difference in terms of touch because the extension feels like the real cock - the advantage was on the length's side.