Unlimited sex after death is the foundation of Islam.
To understand this you need to know something about the origin of Islam. It was, certainly, based on the delusions of an ambitious, illiterate camel-trader, but it appeared in a culture that was entirely Goddess-worshipping. When Mohamed rails against ‘the polytheists’, he specifically means these worshippers; so his cult is completely misogynistic.
The Goddess in this case was triple, Al-Uzza, Al-Lat and Menat. Their followers were Mohamed’s sworn enemies and so, unsurprisingly, he wrote out every possible element of femininity in his proto-cult and turned it into one of warfare, killing and misogyny It was fuelled by his promise of unlimited sex after death.