Let those who do not find the means to marry be abstinent until Allah enriches them of His bounty. Those your right hand owns who seek their freedom, make a contract with them accordingly if you know some good in them, and give them from the wealth of Allah that He has given you. Do not force your slave-girls into prostitution in order to seek worldly gain for they wish to preserve their chastity. Whosoever compels (forces) them, surely Allah, after their being compelled (forced), is the Forgiver (to the girls), the Most Merciful.
Eh, no, it doesn't say it isn't allowed, it actually says that if you do happen to rape your slave girl, Allah will forgive the girl..........
Explain the above and also the many verses contradicting the above.