We've got another comic that I believe will be to your liking -
Curse by 2dollars with artwork by Robekka.
An ex-girlfriend of the protagonist obsesses over him constantly. Sadly they broke up but she hasn’t let it go. Using her wiccan heritage she casts a curse on her ex lover. The curse is that any women he has sex with, touches or even checks out will grow to show the enormous affection she has for him. His ex does this with the hope that he will go back to her out of the pure chaos of the giantesses he creates.
Title: Curse
Pages: 16 + cover
Tags: sex, growth, hand held, face sitting, breast expansion, mini-GTS, giantess, boob crush