Charlie Sheen: No Dough Left for Denise Richards Either

Charlie Sheen is pleading (celeb) poverty with his other ex-wife, Denise Richards ... insisting his child support payments to her have to be reduced, just like Brooke Mueller's.

Charlie's filed docs that are almost identical to what he filed nearly 2 weeks ago. Just like Brooke, he says he's been paying $55k per month to Denise. She's been getting that amount since 2009, but now it's too much for him to handle because "my income has drastically declined."