crimson wings

Like when a pilot has his first solo flight he gets his wings. When a man has sex with a girl for the first time while she has her period he gets his crimson wings. (Brown wings when its the first time up the arse)

Man 1: How did your date go with Sharon last night, did you bang her?
Man 2: Not bad, she was a bit moody, she said it was down to her time of the month. I banged anyway though.
Man 1: Nice one, you got your Crimson Wings.