I happen to be burdened with the nipple fuck fetish, so I suppose I must give it a go. I'll report back on how it was as soon as I can. Cheers.
EDIT: Am at the second-to-last encounter, and just can't force myself to grind through it. So, with that admittance, here is my incomplete review:
This game is strictly for fans of nipple-fucking. There is only one type of enemy, and most of the game's art is entirely visible in the preview on this site. The mechanics are very simple, and rather fun - at first. But after the 40th repeat of the same behaviour with the same unskippable picture sequences, it grows quite tedious. I recommend playing it for 10-minutes or so and then doing something else. Cheers.