Write a story about a girl named NAME_1 NAME_2 her boyfriend NAME_3. They want to spice up their intimate life. NAME_1 suggest to do scat play, because a friend of hers recommendet it. NAME_1 takes a dump on NAME_3's erect penis. He penetrates her, using her own shit as lube. While he is penetrating her, she uses her shit covered feet NAME_2 rubs them all over his chest. The stink is extreme. At the moment of orgasm, NAME_3 also shits a lot on her. 