As to prostitution and pornography, those are of course without a doubt commodification of the female body and form and cannot exist under communism.

Not sure I agree with the pornography part, depending on how you're defining pornography. That might be the case for paid pornography but I bet even under communism there will be people wanting to show themselves in sexual acts, and perhaps even more so than now as losing their jobs because people saw them online and things like that wouldn't be a problem, unless it was outright made illegal of course.

Also with extra freedoms under communism more and bigger and more inclusive communities about these things could come to exist, perhaps even involving money but not to "pay for people" but to produce content that people want to produce/consume.