Woman bending over shows anal hole

Why did this happen, but on all the photos, a woman bending over, spreads her buttocks and shows her anal opening. The photos are made at different times, because it is clearly visible that in some photos the anus is narrow, on some only after sex. It also had a few hair in the beginning, but then she shaved it and the man apparently fucked her in the shaved anus, because the last photo shows that her anal hole was shaved and in semen. And from it, something brown was dripping onto the sheet ...