Nipple Shape after BF

Vanessa • Married to the most wonderful & handsome man in the world! 👧🏻💞 born Oct. 23. 2016 & 👶🏽💚 born May 2. 2018 ♥️IG: DwyerBearFamily
I always read about lipstick shaped nipples after feeding but rarely see football shaped ones? That's how mine is when my baby is done nursing. Is this normal?