I think we can all safely assume that poster is not referring to sex with farm animals (because they can't give consent, amongst other reasons) and sex with children (or anyone else who cannot give consent based on relationship/power dynamic). You might argue that we can't assume such a thing but I'm pretty sure we can. If the other parties can consent freely, then it is okay even if I personally find it weird and something I wouldn't do. If you want to bring religion into it (which you haven't) then that's another problem (and would mostly be yours).Well it really depends what is meant by experimenting. Not everything is okay.