From a Christian perspective of course, but I am hesitant to compare sexual pleasure and Heavenly bliss. It is more like eternal freedom from fleeting needs of pleasure or the experience thereof, and maybe not as... physical?
I agree, there is no need for questions, because we would be in the eternal presence of God and thus, to some degree, either be partaking in limitless wisdom-- or so deeply humbled and content in the presence of such profound Love that not a single question is needed, it would just be some kind of impossible selfish corruption to even conceive of questioning His infinite majesty, since He is the highest Truth and Love itself.
Yet, any question our souls would ask would surely be answered?