ive asked a question before about lubes and got some very good advice but im just wanting too see if i can get some more tips. of all the ones my partner and i have tried our favourite by far is doc johnson natural anal lubricant. reason being it lasts a very long time but also the thickness of the stuff is amazing, out of pot its solid. best part of this is that in the first minute not only does it lubricate but the viscosity creates a feeling of suction that blows the mind. sadly as it warms up this gets less anyone know of a lube that retains that thickness throughout?
Depends on what type of buttplug or dildo you would be using. Glass buttplugs or dildos are better off using silicone or water based lube while else, silicon BPs and Dildos are with Water based lube. Silicone stays longer.
If you aren't using condoms, then Vaseline is probably the most practical, as well as being the cheapest. However, it does have the major disadvantage of being messy to clean up afterwards.