Grandma's Gift: Mandy Upsizes

Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa, Ma/ft, Fa/ft, Reluctant, Teen Siren, Cheating, Slut Wife, Incest, Mother, Daughter, Group Sex, Exhibitionism, First, Masturbation, Oral Sex, Petting, Safe Sex, Voyeurism, Big Breasts, Size,

Erotica Sex Story: Samantha returns from a mysterious trip with newly enhanced boobs. Aaron is impressed, but things really get interesting when Mandy stuffs her daughter's bra and loves the way she looks and the reaction she gets. If Aaron can't keep his hands off Samantha's chest or keep from jacking off in front of everyone because of her new boobs, what's going to happen when Mandy decides to go even larger than her daughter, much larger?