Tammy Lynn Michaels, Melissa Etheridge's former girlfriend and domestic partner, has filed legal documents asking for full legal and physical custody of their 3-year-old twins, Johnnie and Miller, TMZ reports.

Etheridge filed legal documents to end the relationship last week and asked for joint legal and physical custody. The pair became domestic partners in August 2005. Etheridge's rep announced the end of the nine-year relationship in April.

Michaels, who's been very vocal about being blindsided by the breakup, doesn't agree with Etheridge's request and is specifically asking for full custody. Michaels carried the twins to term after being impregnated by an anonymous sperm donor.