Butt plug :: Butt plug represents special device of unique shape made of rubber or jelly. Usually such anal toys as butt plug are 8-16cm long and 1-5cm in diameter, and also it has disk bottom. Butt plug which is also called anal extender, is applied for preparing of anus to anal sex. Butt plug may be used directly before sexual intercourse and also during free time for anus extending. Besides, butt plug is applied during vaginal sex. It is inserted into anus to constrict vagina if it is extended after delivery or so.
Butt plugs :: may be in the form of a cone or finger. Men put such plugs in anal orifice for prostate stimulation. Women do it with another purpose: plug fills up the area of rectum and presses down on vagina outside, reducing it in size, so pleasure increases during sexual intercourse. Butt plug is also applied for the relaxation before anal sex or for the constriction of vagina. The last one can be used by women with wide vagina (for example when her vagina muscles are loose after delivery, and also for increasing of sensations during sex. It is recommended to use butt plug with water based lubricants.
Needless to say that :: silicone based lubricants cannot be used with silicone sex toys. As for 100% silicone sex toys, you will not face with such problems unless it is not 100% silicone. It is also fine to use silicone-based lubricants with condoms of just about any kind. You have to be sure that it is made from 100% silicone elsewise it may destroy the sex toy and break it down. Using silicone-based lubricant with latex toy, make sure to double-check the information about the product and sure it is safe to use with latex. Apply the silicone-based lubricant in small amounts, spreading it around slightly until the needed lubrication is achieved.