|This is normal|
Those icons remind me of the story of prophet Lut, who his people were known for homosexuallity.
Surah Al-Araf, Verse 80:
وَلُوطًا إِذْ قَالَ لِقَوْمِهِ أَتَأْتُونَ الْفَاحِشَةَ مَا سَبَقَكُم بِهَا مِنْ أَحَدٍ مِّنَ الْعَالَمِينَ
And (We sent) Lut when he said to his people: What! do you commit an indecency which any one in the world has not done before you?
Surah Al-Araf, Verse 81:
إِنَّكُمْ لَتَأْتُونَ الرِّجَالَ شَهْوَةً مِّن دُونِ النِّسَاءِ بَلْ أَنتُمْ قَوْمٌ مُّسْرِفُونَ
Most surely you come to males in lust besides females; nay you are an extravagant people.
Surah Al-Araf, Verse 82:
وَمَا كَانَ جَوَابَ قَوْمِهِ إِلَّا أَن قَالُوا أَخْرِجُوهُم مِّن قَرْيَتِكُمْ إِنَّهُمْ أُنَاسٌ يَتَطَهَّرُونَ
And the answer of his people was no other than that they said: Turn them out of your town, surely they are a people who seek to purify (themselves).
Surah Al-Araf, Verse 83:
فَأَنجَيْنَاهُ وَأَهْلَهُ إِلَّا امْرَأَتَهُ كَانَتْ مِنَ الْغَابِرِينَ
So We delivered him and his followers, except his wife; she was of those who remained behind.
Surah Al-Araf, Verse 84:
وَأَمْطَرْنَا عَلَيْهِم مَّطَرًا فَانظُرْ كَيْفَ كَانَ عَاقِبَةُ الْمُجْرِمِينَ
And We rained upon them a rain; consider then what was the end of the guilty.
Surah Al-Qamar, Verse 33:
كَذَّبَتْ قَوْمُ لُوطٍ بِالنُّذُرِ
The people of Lut treated the warning as a lie.
Surah Al-Qamar, Verse 34:
إِنَّا أَرْسَلْنَا عَلَيْهِمْ حَاصِبًا إِلَّا آلَ لُوطٍ نَّجَّيْنَاهُم بِسَحَرٍ
Surely We sent upon them a stonestorm, except Lut's followers; We saved them a little before daybreak,
Surah Al-Qamar, Verse 35:
نِّعْمَةً مِّنْ عِندِنَا كَذَٰلِكَ نَجْزِي مَن شَكَرَ
A favor from Us; thus do We reward him who gives thanks.
Surah Al-Qamar, Verse 36:
وَلَقَدْ أَنذَرَهُم بَطْشَتَنَا فَتَمَارَوْا بِالنُّذُرِ
And certainly he warned them of Our violent seizure, but they obstinately disputed the warning.
Surah Al-Qamar, Verse 37:
وَلَقَدْ رَاوَدُوهُ عَن ضَيْفِهِ فَطَمَسْنَا أَعْيُنَهُمْ فَذُوقُوا عَذَابِي وَنُذُرِ
And certainly they endeavored to turn him from his guests, but We blinded their eyes; so taste My chastisement and My warning.
Surah Al-Qamar, Verse 38:
وَلَقَدْ صَبَّحَهُم بُكْرَةً عَذَابٌ مُّسْتَقِرٌّ
And certainly a lasting chastisement overtook them in the morning.
Surah Al-Qamar, Verse 39:
فَذُوقُوا عَذَابِي وَنُذُرِ
So taste My chastisement and My warning.
Surah Al-Qamar, Verse 40:
وَلَقَدْ يَسَّرْنَا الْقُرْآنَ لِلذِّكْرِ فَهَلْ مِن مُّدَّكِرٍ
And certainly We have made the Quran easy for remembrance, but is there anyone who will mind?
*There are some other chapter in the Quran mentioning prophet Lut and his people; some of the surah - Al-An'aam, Al-Aa'raf, Hud, Al-Hijr, Al-Anbiya, Al-Haj, Asy-Syu'ara, An-Naml, Al-Ankaboot.
Ask Google and Wikipedia about Pompeii. Could it be that Pompeii was the place of the people of prophet Lut?
I couldn't confirm but the possibility is there.
Search keyword - Pompeii or erotic art of pompei.
Caution: please take note that the result may not be suitable for general viewing as some of them are sexually explicit.