Lindsay Lohan, who only recently confirmed she was in a same-sex relationship with DJ Samantha Ronson, is planning to exchange vows with her in a private ceremony in Los Angeles later this year, and her mother Dina has already started planning a lavish party. A source claims, “They’ve been keeping the relationship quiet for months and trying to pass each other off as ‘just good friends.’”But they’ve decided it isn’t a fling, it’s for life, so they want to make their romance public. Dina is still working on the date of the party but it’s looking like towards the end of the year.” It is believed the nuptials could take place in November around the same time Lohan releases her new album ‘Spirit In The Dark.’Lohan has already bought a white Chanel mini-dress for the ceremony, while Samantha may be wearing a black suit and top hat. Friends and relatives will attend the special day, with Dina determined to make the event the perfect way to “welcome Sam into the family.”