sims 2 ultimate collection action cancels and sim resets

Hello   I downloaded the sims 2 ultimate collection from your website and followed the installation instructions in order. After installing, I immediately installed custom contents and mods. And then I started the game and  made a teenage female sim and an adult guy.the problem is that I can't make both of them relax in the bed to try for a baby coz the action automatically cancels .  I have a video below to so that I can show you what I mean. What should I do?   Btw, I used the simblender mod so that i can accelerate their relationship into spouses.

ok so here are all the videos ( i uploaded these from my yt channel). I duuno what caused my sims to act like these   Please help me