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: so this actually happened last night, but that was less than 24 hours ago so i'm counting it. prior to dating me, my girlfriend (bi) dated another girl, we'll call b. so b and my girlfriend broke up on good terms (b decided she wasn't gay/ bi) and so i eentually became friends with b through my girlfriend. alls fine until last night when i decide to send my girlfriend a dirty picture (as we had done many times before). my girlfriend, however doesn't have a cellphone so we message through an app called kik. usually she's the only person i message through there, but last night b asked me about a trip i recently went on. we talked for a while then i decided to send my girlfriend a dirty picture. i forgot that i had actually been talking to b last, and ended up sending the picture to her. she said it never happened so that's good at least.
 

edit: she did actually get it, she just was trying to brush it off out of kindness.

TIFU by sending my girlfriends ex girlfriend a dick pic