Genius. Billionaire. Playboy. Philanthropist. All words used to describe Tony Stark. But Peter just described him as 'Dad'. --- AU where Tony is Peter's biological dad. After gaining superpowers, Peter finds himself spending his nights as Spiderman, solving small problems and crimes. The only problem is... Tony doesn't know. At least, not until he starts to notice Peter's injuries from patrol. [I don't own anything Marvel, and the characters may be out of character by a bit or a lot, since my writing is still improving.]