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: all right, so this just happened to me and i am so embarrassed. today's my birthday and my girlfriend and i were supposed to go out, but she had to pick up an extra shift at work, so we both decided to celebrate my birthday tomorrow. it was a boring night and i had nothing to do but stream netflix, so what's the next best thing? i decided to watch some porn to pass by time before i sleep. my roommate is gone for the weekend, so i was able to masturbate freely. as i was getting into it, i hear the front door open. i heard the voice of my roommate echoing through the walls. i was sure he heard my sexual moans. instead of stopping, i decided to continue masturbating making all these sounds. my girlfriend and i have sex all the time in my room, but my roommate doesn't seem to care too much, so i decided to let my roommate believe i was with my girlfriend. it's better than masturbating, right? all of a sudden, i heard a door slam. i dismissed it and continued to masturbate. 10 minutes later, i received a text from my girlfriend.
                                  
**girlfriend:** it's over

**me:** what?

**girlfriend:** i can't believe you...i was going to surprise you. i never want to see you again.

 5 minutes later, my roommate texted me...

**roommate:** that's messed up, man.

**me:** what did i do?

**roommate:** you had another girl in your room.

that's when i realized that my roommate and girlfriend thought that i was with another girl in my room. she's not responding to my texts.

 

**update:** wow, today is just not my day. it's also friday the 13th. i got a text back from her telling me that it was okay that i cheated on her because she also had a moment of weakness a month ago when she cheated on it. i don't know how to take this right now.

**update #2:** she cheated on me with my roommate. supposedly they were heading back to my place together to fuck. i told my roommate that i would be out with another friend celebrating my birthday for the night, so it looks like my roommate and girlfriend took the opportunity to fuck while i was gone. little did they know that i decided to stay home.

TIFU by pretending to have sex on my birthday