I also want to echo that I would absolutely love to see both of the LMA games on Steam as well.
I think the two games will have no problem getting on Steam, as long as you tag it as AO (Adult Only) and put correct tags, plus warnings in the description. As Elvick already said, there are rules that if you follow, everything will go fine without having to cut any content. In addition to the games Elvick mentioned, Coming Out On Top is also a very adult-oriented game that came out on Steam with no problem. Many adult games by Y Press Games (a visual novel publisher) are also on Steam.
I simply wanted to voice a bit of opinion, because I really want this game (along with possible sweet Steam achievements) in my library. I hope you will consider it!