Charlie Sheen with (from left) daughter Sam, ex-wife Denise Richards and daughter Lola
11/20/2011 at 02:00 PM EST
Well here's something you don't see every day.
was photographed Sunday with ex-wife Denise Richards
and their daughters Sam, 7, and Lola, 6.
Sheen, 46, who's kept a low profile this fall after plenty of highly-publicized drama
earlier in the year, showed up in Calabasas, Calif. for Sam's soccer game, according to photographers.
"We're not in the best place right now," Richards, 40, said in April
of her relationship with Sheen. "But I do still communicate with him."
Things certainly looked better on Sunday. The former couple wore sunglasses and smiles as they set up camp in the grass with their girls, armed with food, drink, and – by the looks of the pink stroller – perhaps Richards's adopted baby daughter Eloise
The big sisters, who helped name their new sibling
, "love having a little baby sister," a source previously told PEOPLE.