I remember this to be one of or if not the first porno movies I ever saw , in the dawn of the VHS revolution this film was being swapped about my playground amongst the hormone ridden 13 year olds , eventually it landed in my greasy hands and I was "treated" to a hard core porno with comedy elements, think 'Some like it hot' where two guys sneak aboard a woman only ship dressed as women , as you can imagine , there are many sexual escapades , including an impressive one man on 5 women orgy , the film concludes with some pirates raping and pillaging, the raping is far from sinister as the women look like they are raping the pirates !
I have a soft spot (or hard one, depending on your point of view) for this movie.
Give it a go