I don't think anyone can speak for paganism and it's views on sexuality.
My own personal view ..... as long as what somebody else is doing isn't affecting me then it's not my concern. There's a lot of diversity out there in what turns people on. I just don't feel that it's my place to judge.
Of course there have to be reasonable limits, but as long as everyone is over 18 and nobody no innocent is being harmed ?