Sharon Fontaine (シャロン・フォンテーヌ) from the game "Kouki na Ojou-sama o Katappashi kara Haramasetara, Dou Naru ka? (高貴なお嬢様を片っ端から孕ませたら、どうなるか?). As with other eroge prompts, trained on some NSFW images so take precautions as appropriate. Adding "loli,young" to the negative helps with body shape

Prompt:

SharonFontaine,large breasts,long hair,blonde hair,blue eyes,hair ribbons,twintails

Outfit:

SharonFontaine,large breasts,long hair,blonde hair,blue eyes,hair ribbons,twintails,school uniform,blazer,white shirt,blue bowtie