Being of a literary bent, I have just the quotation for you. So read and learn, children.

"There is an etiquette for dealing with this sort of erection. I refer you to Sheherezade and her stories of the great Caliph Haroun al-Rashid in the Arabian Nights. Two of Haroun’s many slave-girls were arguing over just such an erection until one said ‘On the authority of Hisham ibn Orwah, who had it of his grandfather, the Prophet said “Whoso quickens the dead, the dead belongs to him and is his.”’ Even so, she didn’t get to use the erection; her colleague seized it by force and took it as her own. And today the tradition still remains, if you can get it to stand up, it’s yours to do what you want with. Just keep the other slave-girls and concubines away from it."

And for your other question - will the owner of said erection object if he wakes up and finds himself buried in something warm, wet and succulent? Are you crazy? You know the male brain becomes completely disengaged in such a situation. And when he floats back down to earth, he will reflect on how lucky he is to sleep with such a sexy lady.