Here's my first attempt at a mod. It's the first step towards image packs for this fantastic game.
It adds a separate picture so that when you're "being intimate" with the characters, you see a different (ie: more lewd, naked) picture instead of the regular profile picture.
I've included the mod along with a sample pack of 5 girls that I made as a proof-of-concept. Shows where all the pics go.
I've made it work on .22b on my machine but need someone else to try :)
One bug: If you change someone's picture to one of the girls with an extra picture, and then switch back to one without the extra picture, you'll end up not showing any pictures during sex. Not sure why.
I've only tried this without any mods or with only the Constants mod. I think it is likely INCOMPATIBLE with the well-used random-picture mod.
Away this weekend with limited access. Bugs will be ironed out next week.