All my character says is that he wants to have fun with the girl, but not like this, and then i get moved on to another day. I tried editing both love and lust stats bit by bit to see if maybe i have never reached whatever threashold required, but even at 100 lust and love, nothing.
This genuinely took me less than 5 minutes. Try making her wear her pajamas.
Edit: Did it again with May without really even trying. No PJs needed.