Considering its one of the most requested topics, it will be in there, but it will likely be added at the end of the game. Look, I understand, but there's only a couple of artists working on the game, and they have other things to deal with first; character assets, poses, scenes, clothes for new characters and character development and locations, etc etc. And the kind of thing you want is a massive undertaking, because every single item of clothing is going to have be involved and done for various stages of undress. Think about how many items of clothing a single character has, now imagine that there is a minimum of three variations for stages of undress. Now multiply that by 15 (3 new love interests each year over 5 in-game years) and that becomes a massive project.
Hopefully as the game progresses and gets more support, the dev team can hire more artists who can work on the clothes. But that is going to depend on continued support from people.