moan with (something)
To utter loud, prolonged moans because of some intense sensation or stimulus. It's incredibly awkward hearing the woman next door moaning with pleasure in the middle of the night. I'll never be able to rid myself of the memory of hearing all those soldiers strewn about on the battlefield moaning with the agony of their injuries.
moan with something
to groan because of pain or pleasure. The patient moaned with pain and fear. Ken moaned with pleasure.