Jason Derulo -- Perfect Match ... I'm Single, She's Thirsty (VIDEO)

Jason Derulo is having no problems as a single man ... because at least one woman was almost clawing at him to get his attention ... and she did.

Jason was at Members Only Day Party in Hollywood Sunday night, when our photog asked him about the spate of recent breakups. He says he feels everyone's pain, but that pain was quickly abated when 2 women jumped in his whip.