Christina Aguilera worships her vibrant red lipstick. The singer has said she wears a water proof make-up to avoid leaing marks on her son. “I love having red lips,” says Christina. “There’s just something fun and vibrant about it. I love that extra little ‘pop’ to any look no matter how simple or strong the rest of the face is. “But I have been using this kiss-proof red lipstick recently so I can kiss Max without getting kiss marks all over him.”