I started having a discharge after my penis got hurt, is this normal?

okay so i hoocked up with a friend and we had some rough sex, and the next day i woke up and realized right where the pee whole is, it got torn underneight and then it started to hurt when i pee, that is what i expected but then i started to have this dicharge. when wearing white spandex it dryed into like a yello greenish color. is this normal for when a penis gets hurt? or is it something more? Everyone i have been hoocked up with were all clean, and we never did anything that would give me an STD