I found some great anime hentai fan art created by AI hentai generator:
The created the most similar character of High School DxD. And the prompt tags are:
Rias Gremory, High School DxD, curvaceous body, fair skin, blue-green eyes, crimson hair, long hair down to thighs, hair strand, ahoge, white shirt with a black ribbon, sleek black cape, matching corset, fabulous magenta skirt with white accents, brown shoes with crew-length socks
The created the most similar character of High School DxD. And the prompt tags are:
Rias Gremory, High School DxD, curvaceous body, fair skin, blue-green eyes, crimson hair, long hair down to thighs, hair strand, ahoge, white shirt with a black ribbon, sleek black cape, matching corset, fabulous magenta skirt with white accents, brown shoes with crew-length socks