Remy Martin celebrates Tristan Thompson's Birthday at Beauty & Essex

Source: Jerritt Clark / Getty

Khloe Kardashian was busy doing more than just tweeting to put a stop to rumors about Tristan Thompson. According to E! News reports, on Wednesday Khloe Kardashian and Tristan Thompson sent a cease and desist letter to a woman claiming the NBA star is the father of her child.

In a letter sent by the former pair’s attorney Marty Singer, a woman named Kimberly Alexander is asked to “immediately stop defaming them with malicious defamatory lies and specious fabrications”.

The demand stems from a report published by ttabloid site