I think it's a tiny bit of a shame that in order to progress the fastest, you need to play with as many tentacles active at the highest speed at all times.
Maybe add a way to reward slower speeds as well as fast? Alternatively, make speed not effect pps or something?
Also, it'd be nice if creampies gave points or point mult or something. Seeing it get its own meter next to the lust mechanic makes it appear really important, but it's entirely cosmetic. Feels odd.
Love the game overall, though :)