ElizaPatton
Peter Parker is used to his infamous 'Parker luck', so it's no surprise when the paper stops paying him, and, long story short, he's homeless. It is a surprise, however, when he's captured by a mysterious group who seem to have targeted him specifically. And, he's even more surprised when he realizes his cell-mate is none other than Tony Freaking Stark.
(Romances and hurt/comfort abound, along with some good ol' quippy one-liners here and there! Eventually it's an 'All the Avengers live in the tower together' kinda fic. Thanks to everyone who reads!)