I.e. paedophilia and rape is a cultural thing.I never claimed to be an expert in Islam but you're right, Prophet Muhammed was believed to have multiple wives... Regarding Aishah; "26 كتاب النكاح The Book of Marriage
(78)Chapter: Consummation Of Marriage With A Girl Of Nine(78) باب الْبِنَاءِ بِابْنَةِ تِسْعٍ .
It was narrated that 'Aishah said: "The Messenger of Allah married me when I was six, and consummated the marriage with me when I was nine."
أَخْبَرَنَا أَحْمَدُ بْنُ سَعْدِ بْنِ الْحَكَمِ بْنِ أَبِي مَرْيَمَ، قَالَ حَدَّثَنَا عَمِّي، قَالَ حَدَّثَنَا يَحْيَى بْنُ أَيُّوبَ، قَالَ أَخْبَرَنِي عُمَارَةُ بْنُ غَزِيَّةَ، عَنْ مُحَمَّدِ بْنِ إِبْرَاهِيمَ، عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ عَائِشَةَ، قَالَتْ تَزَوَّجَنِي رَسُولُ اللَّهِ صلى الله عليه وسلم وَهِيَ بِنْتُ سِتِّ سِنِينَ وَبَنَى بِهَا وَهِيَ بِنْتُ تِسْعٍ .
Grade : Hasan (Darussalam)
Reference : Sunan an-Nasa'i 3379 In-book reference : Book 26, Hadith 184 English translation : Vol. 4, Book 26, Hadith 3381
http://sunnah.com/nasai/26/18467 Wedlock, Marriage (Nikaah)
(60)Chapter: Whoever consummated his marriage with a lady of nine years of age(59)باب مَنْ بَنَى بِامْرَأَةٍ وَهْىَ بِنْتُ تِسْعِ سِنِينَ
Narrated 'Urwa: The Prophet (ﷺ) wrote the (marriage contract) with `Aisha while she was six years old and consummated his marriage with her while she was nine years old and she remained with him for nine years (i.e. till his death).
حَدَّثَنَا قَبِيصَةُ بْنُ عُقْبَةَ، حَدَّثَنَا سُفْيَانُ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ عُرْوَةَ، تَزَوَّجَ النَّبِيُّ صلى الله عليه وسلم عَائِشَةَ وَهْىَ ابْنَةُ سِتٍّ وَبَنَى بِهَا وَهْىَ ابْنَةُ تِسْعٍ وَمَكَثَتْ عِنْدَهُ تِسْعًا.
Reference : Sahih al-Bukhari 5158 In-book reference : Book 67, Hadith 93 USC-MSA web (English) reference : Vol. 7, Book 62, Hadith 88
http://sunnah.com/bukhari/67/9326 كتاب النكاح The Book of Marriage
(78)Chapter: Consummation Of Marriage With A Girl Of Nine(78) باب الْبِنَاءِ بِابْنَةِ تِسْعٍ .
It was narrated that 'Aishah said: "The Messenger of Allah married me when I was six, and consummated the marriage with me when I was nine, and I used to play with dolls."
أَخْبَرَنَا مُحَمَّدُ بْنُ آدَمَ، عَنْ عَبْدَةَ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ تَزَوَّجَنِي رَسُولُ اللَّهِ صلى الله عليه وسلم وَأَنَا بِنْتُ سِتٍّ وَدَخَلَ عَلَىَّ وَأَنَا بِنْتُ تِسْعِ سِنِينَ وَكُنْتُ أَلْعَبُ بِالْبَنَاتِ .
Grade : Sahih (Darussalam)
Reference : Sunan an-Nasa'i 3378 In-book reference : Book 26, Hadith 183 English translation : Vol. 4, Book 26, Hadith 3380
http://sunnah.com/nasai/26/183"