مُتَّكِئِينَ

(Reclining), in reference to the residents of Paradise, who will recline or sit cross-legged;

عَلَى فُرُشٍ بَطَآئِنُهَا مِنْ إِسْتَبْرَقٍ

لَمْ يَطْمِثْهُنَّ إِنسٌ قَبْلَهُمْ وَلَا جَانٌّ (...whom neither a man will have touched before them, nor a Jinn....55:56). The word طْمِث tamth has different meanings. 'Menstrual discharge' is termed as tamth, and the menstruating woman as طْامِث 'tamith'. It also means 'sexual intercourse with a virgin'. This second sense is meant here in this verse.