Contrary to :: conventional wisdom, strap on is used by both sexes – man and woman. The main difference between male and female strap ons is fastening construction: strap on for women often has long narrow cut which allows direct contact with vagina. Strap on for man has special cut for penis which allows man double penetration. Also some types of strap ons may be supplied with special attachments directed inward: for vaginal or anal stimulation. These sex toys are usually made of plastic, rubber or silicone. Choosing lubricants, you should mentioned the material strap on is made of. Rubber and silicone toys are damaged from oil based lubricants. Vaseline, massage oils are also inappropriate because of the same reason.
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.
Water based lubricants are :: available in every possible consistency, from thin as water to thick as pudding. Thick water-based lubricants can be better for anal play and easier for playing with sex toys. It is possible that a thicker water-based lubricant creates an extra cushion of comfort for anal play, and certainly true that it's easier to use with sex toys as it stays on better than a thin lubricant will. Some people find thinner lubricants are cleaner and less noticeable. You may also want to consider how the lubricant feels when it dries. Most water-based lubricants will feel a bit tacky when they dry up. There are a few non-tacky products that are less sticky when they dry. Water-based lubricants are recommended by doctors and health care workers.