Mommy Can Heal You too! (Patreon)

This takes place after  "Sakura's Healing Abilities"  https://www.patreon.com/posts/37605086 

After seeing how effective Sakura's method was Hinata decided to give it a try. She wasn't sure it was appropriate but after seeing how excited Boruto was with the idea, she took off her clothes and started spreading her legs for him.

Little did she know of Boruto's seemingly never-ending stamina (something Sakura left out), so Boruto fucked his mom for hours until his balls were empty!