Sami Sheen seems to be celebrating her independence just days after her mother, actress Denise Richards, spoke about her heartache over their strained relationship.The burgeoning model posted three bikini pictures on her Instagram page on Tuesday.The 17-year-old beauty - whose father is Charlie Sheen - wore a green bikini with a straw hat as she sat on a beach in Malibu. Life's a beach:Sami Sheen seems to be celebrating her independence just days after her mother, actress Denise Richards , spoke about her heartache over their strained relationship.