The custody battle between embittered exes Denise Richards and Charlie Sheen over their two daughters just took an even uglier turn. Denise presented the LA Superior Court with some shocking e-mails that Charlie sent to her, in documents filed last week, reports the New York Post. "Go cry to your bald mom, you *ing loser," he allegedly wrote in one, referring to the actress's mother, who is undergoing chemotherapy for cancer. Other e-mails referred to Denise as "a sad jobless pig who is ... evil and a bad mom," and "an evil piece of *." Personal attacks aside, she also claims that Charlie used sex sites and emailed x-rated pictures of himself to "approximately 30 women." Charlie responded to the allegations through his rep, saying "I will not dignify the majority of these allegations with any measure of response. On its best day it remains laughable and inane." Somehow it's hard to imagine anyone finding any of this funny.