I don't find they hold heat very well so I don't bother.

nope. I just lube it up and use it. Or she does. But we dont warm it up.

My hubby usually runs warm water through before use.

Sometimes I'll tease my lover with a MM toy by holding it between my tits or thighs while he fucks it -- body heat soaks in pretty well.

I wash mine with hot water if it feels cold.

A warm Fleshlight feels so much better then a luke warm one but it is true that they cool off pretty fast if you use warm water. Wrapping it up in a heating blanket works much better.

The best way to get that hot sensation is to warm your lube up. Mix it with a teaspoon of really hot water and you get a very slippery liquid that makes any Fleshlight feel amazing.

It is a huge mistake to not warm the sleeve up before use imo. You get so much more sensation out of them when they are at or above body temperature.

Likewise, I just apply the lubricant and begin.