So both genders count of humans?
So both gender species in humans count?
Sorry I didn't see my response before.
xxxx52 has galleries on Pixiv & hentaifoundry, but none have this particular old series. There's dead links suggesting there was one on DeviantArt once. My google foo failed me. The most complete list seems to be on
rule34 has more images but most are duplicates…
now this is the quality weirdness I come to the internet for
Heres some more