Photos: Princess Love disgraces her sister-in-law, Brandy on Instagram

After Brandy and her mother, Sonja Norwood, skipped Princess baby shower following an altercation at their gender reveal party the day before, Brandy took to Instagram to let everyone know it's all love within the family.

Brandy decided to sit up in her room rather than go to Ray J and Princess Love's baby shower this past weekend.

Both Brandy and her mom, Sonja Norwood, decided to skip the festivities after Brandy got into it with Princess earlier in the week.
This was what allegedly happened:

Apparently, Princess Love had recently tweeted some cryptic messages about cheating ... and not staying in a relationship just because you have a baby with someone. We're told Brandy and Sonja took that to be an unwarranted shot at Ray ... and s*** hit the fan.

Sources say Brandy and Sonja demanded that PL apologize to Ray J, and that started a huge fight. Princess Love told the two ladies to mind their own business ... adding they had no right to weigh in on her relationship since they couldn't keep their own together.

Brandy now says the only reason she missed the baby shower was because she had a previous engagement in Hampton.

Princess disagrees.

Not only did Princess respond telling Brandy to 'STFU,' but she also threatened to expose what Brandy allegedly texted her -- and we assume it isn't nice.

Spill Princess Love, spill!