I would never use anything that' is meant to get wet becasue it makes your penis dry and then it rubbs off on it. Take that from experince of masturbation. Also it depends are you stroking your penis or are you going to finger your self analy? Cause if you finger your self analy then just take a latex glove and put some oil on it (cooking works well) and just slide it on in, or just get condoms for lube.
I'm here to help with any questions you have. Just pm and well talk. I'm a youth educator for the BVHW and am certified. Heck Im so good I should be a mod.