Oh Ryan Reynolds, you cheeky thing, you.
He captioned the tweet "#Deadpool: A motherfucker since 1991. #happymamasday." 1991 is the year Deadpool first appeared in a comic.
The 38-year-old actor previously shared a parody photo of "Deadpool" in March, spoofing Burt Reynolds' nude 1972 Cosmopolitan spread.