Mary Jane Watson is Peter Parker's friend.
At some point in time, Mary Jane found out about Peter's secret identity as Spider-Man and helped sew up his costume. After sewing up his butt in the suit, she gave it back to him. Later on, Peter told her about the Venom suit and she later told him about superheroconspiricies.com which led him to learn about the Beetle. After Venom had been defeated, Peter expressed his concern about Eddie to her and that he didn't know if he was scared for or of him, but she reminded him that he wasn't there and she was.