glass dildoes vs. rubber cocks on wenches?

[Bert Notorius]

glass is
aesthetically
pleasing

but

rubber is
where friction
meets the road.

 

[jezzilee]

glass is
aesthetically
pleasing

but

rubber is
where friction
meets the road.

You didn't mention steel. Glass and steel are my favorite.

 

[adrina]

Silicone too.