Yeah you described it even further, and I generally agree. Also yes, anus itself as the muscle does feel the texture way stronger (which, btw, acts as a great reminder to lubricate very well).
Normally, the diameter is listed IIRC, and I generally understand the size of 1,75". I’m personally no size king though and go 1" as a comfort option and 1,4" when I want to feel it hard. Anything above that just feels straight uncomfortable no matter how much I relax.
I’ll check Qualia out on those terms, thank you!
Vagina may not always be wet enough. Not all women produce enough lube, even when much aroused. It essentially boils down to physiology.