Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: this actually happened months ago but it was 2015 so i think it still counts. this isnt the first time we tried, but i think this was the last. it was late night, kids asleep, and i think we drank a little. i told her i wanted to try it from behind and at first she didnt, but then she was okay with it. she's not a big fan of it but she knows how much i love it, i cant explain it. so fast forward to the middle of the action and its pretty intense with hair pulling and tight gripping her and then.... i finish. i reach for my t-shirt to clean up my mess and i notice a different substance on my genitals, its not my juices or hers. i turn on my cell phone flash light and realize its actually fecal matter. 

w t f!

(NSFW) TIFU by trying anal with my gf