[BMass13]

Story going really nice bro but, it seems, you need to introduce the erotic part soon. Like seeing her lips, boobs and buttocks and she getting aware of that. She feeding him food and he licking her fingers. He lifting her for some work and in the process feel her thighs, buttocks and her boobs brushing his chest. Catching him reading sex novels or video etc. 

We know you have your own thought process for the story, But if possible, try to include the above scenarios

Every one in internet writing storys like, A girl is an easy prey. But in a real life it is not like that. From my experience and relationships, I not even came through single soul like that. I beleive, for correcting homely and shy girls it required lot of effort, time. So I am taking it in original way.