This is a really cute game!
I like that the gameplay was challenging, and the gameplay was sexual, but the sex felt like play, not reward for a high score. In some ways it actually felt like a sexier game if you slow down, look at the spectators, and take your time with the bunnies, and, that's kind of nice? It contributed to a feeling of everyone being there to have a good time, and winning the race just being an optional thing to shoot for.
The blend of 2d and 3d assets is neat, and I'm not sure I followed exactly what black magic you pulled getting the rendering set up, but I'm impressed.
Overall, the game felt really sexy, cute, and positive, and I dig it.