Guys, I need help!!

I actually read a fanfic months ago and I want to read it again but I forgot the title so I'm hoping you guys can help me

The story is that Yuri, Sooyoung and Taeyeon are bestfriends and they always like to drink, smoke and fight. Sooyoung is the worst followed by Yuri and last Taeyeon

Jessica, Sunny and Tiffany are best friends and are determined to change SooYulTae's attitudes. As the story goes on they fell in love with each other and officially became a couple

I also have another one. It's a TaeNy story. I don't remember the plot well but all I know is that Yuri and Taeyeon are best friends and Jessica and Tiffany are best friends too. 

They are both college students and are attending the same university. TaeYul are roommates and so are JeTi. JeTi's room and TaeYul's room are connected to each other so they will only be using one bathroom

Tiffany likes Taeyeon but Taeyeon gets annoyed of her. Jessica likes Tiffany also but Yuri is determined to make Jessica like her back which in the end they became a couple

I hope the plots help you guys to identify the story. I really wanna read the fanfic badly again so I'm hoping you guys can help me :)

thanks ^_^