Culprit can be the material of the toy itself - are you latex sensitive? Some materials, like Jelly, are meant to be softer but are slightly sticky to the touch. Without a LOT of lube they can cause irritation as well. Some latex based toy do something called "outgassing" when they get older - that latex smell is stronger, because the material is breaking down on the molecular level. Toy doing this have be reported as causing discomfort (Its best to ditch most toys when they show signs of age)
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