Bree's bday date is a bit tricky and you currently can't get the BJ at the end if Bree got full lovepoints (unless you do a afternoon date beforehand I guess, but haven't tried it, because her bday never landed on a weekend for me...)
If you gift Bree a diamond necklace during the date while she has 192LP (96%) the active_date.score get's a +50% boost (she get's 8LPS by gifting it, so 40% more), if she got 200LP (100% max) you only get a 10% boost...
Edit: I checked your save and you could gift Bree a slave colar to get -10% LP before the date, during the date choose "Help her", Gift her a daimond necklace, "Yes", "Romcom", "Sweet", "Let her keep talking" and it should be working.