Nothing says 'winning' (duh) like missing the birthday parties for three of your five kids, in just one weekend.

One of Denise Richards' daughters with Charlie Sheen turned 7 earlier this week, and this weekend, Richards planned a party for Sam (whose younger sister, Lola, will turn 6 this June) to take place at a gymnastics studio, according to an E! source.

Meanwhile, on the same day but reportedly at a different time, a party for twins Bob and Max Sheen is planned to mark their 2nd birthday. It seems the boys' mother, Brooke Mueller, made plans for a fun celebration at the home of family friend Kathy Hilton (Paris Hilton's mom). Mueller currently has a restraining order against Sheen.

Sources claim "there is no plan for Charlie to attend either party."