Unfortunately I don't know much anymore. You play a male protagonist on an island (like Summertime Saga) and try to have sex with as many women as possible. There is a blonde woman, I think she was your classmate or friend who is rich (big property with pool etc. and her best friend is a goth girl. It was definitely 2dcg and not 3d. Unfortunately I don't know any more about it it's been a long time.