It could even be that the girl is bending over and you are behind her in doggy style. As you bang her from behind, you begin to slap the sweet and soft ass and she keeps screaming for you to fuck her harder. That is enough to make you cum hard in your pants. You may even begin to dream a lot about girls showing ass or even begin to think about it a lot. The fact is that girls showing ass will get you hard everytime and you are going to love the beautiful feeling. There are so many asses of girls that you get to enjoy. There are the big ones and the medium sized ones and also asses that are small in size.