Stories of Tie Up Games

I have a little more information in case someone can help me. The story is called “She’s Off Limits” by RopePhoenix. They deleted the story and I can only find Part 1 now. If anyone has Parts 2 and 3 (or any of RopePhoenix’s other work) and can share it I would greatly appreciate it! I remember them...

I don't remember the author, title, or characters, but I remember the plot pretty well. Guy goes to a college party with the intent of asking out his crush. Some other guy who likes her is already there hitting on her, and that guy's sister ambushes the protagonist (I think she flirts with him first...