Why can I only masturbate dry (no lotion, lubricant, etc.)? Is this only a preference?

you know how they say "different stokes for different folks " I'm Pretty sure it's nothing to worry about .... believe it or not most guys hate using lubricant and some guys are just built for like I call it "The all Natural" which suites me just fine and I'm sure your partner will see it the same way. if nothing else a water based lotion or hell spit works just the same It's all in how you like it just keep at it Im sure your going to do just fine