How hard would it be to ride a motorcycle when I've never rode a bicycle in my life?

So my friend recently offered me to ride his Honda CBR250RR the next time I see him. But, the thing is I've never rode on anything with two wheels before. Not a scooter or a bicycle. The only experience I've had with anything similar is on my ATV. Would it be harder to ride a motorcycle? I've heard that going fast is much more stable than going slow. Any other tips from you riders out there? If so, thank you very much!
Added (1). The bike is a project bike so it's not like it's too bad if I drop it. My friend himself has even said that it's fine if I drop it. I'm helping him fix it anyways. We're also going to be on a private road so traffic obviously isn't an issue. I'm a beginner that's simply practicing, not riding on the road or anything dumb such as that.

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