Teairra Mari Sues 50 Cent and Ex-BF for Sex Tape Leak

'Love & Hip Hop' star Teairra Mari made good on her tearful vow to sue her ex-boyfriend and 50 Cent for posting her sexually explicit video and photos.

In the suit, Teairra says her ex, Akbar Abdul-Ahad logged into her Instagram account and posted the video, which included an image of Teairra with ejaculate all over her face. She believes Akbar was getting back at her because she didn't want to be in a polyamorous relationship, as he had suggested.

Teairra says that's why she broke up with him earlier this month, and shortly afterward he informed her his phone had been stolen. In docs, obtained by TMZ, she says that was the moment she knew he was planning to post their sex videos.

Teairra says she deleted the IG post as soon as she saw it, but that's when 50 Cent got involved. According to the suit, the rapper posted the ejaculate screen grab in black and white, in order to highlight the fluid on her face. She points out 50 has 18 million followers ... which meant the cat was now fully out of the bag.

She's also pissed about his caption on the image -- "get the strap" -- which she believes encourages his fans to harm or harass her. Teairra adds, Fiddy's got a bad track record ... pointing out he already had to fork out $7 million to a Rick Ross baby mama for posting a sex tape clip of her.

Teairra says it's a brazen attempt to "slut shame" her that's causing her "significant long term emotional injuries, requiring psychiatric services." She's suing both men for revenge porn, invasion of her privacy and emotional distress.