Somewhat sexy, but that's because watching a guy/monster wank his own dingdong and covering a woman in sperm isn't exactly something that floats my boat. It would have been nice to have a bit of penetration going or at least have her get a little bit of pleasure except for the few seconds of fingering.
The artwork was good however, I was quite pleased with the quality of the characters; however, the animation was a bit odd at times.
All in all, not too shabby though, but I can't vote higher then 3.5 stars, sorry :/