One of the more disturbing episodes in the series is when Ross gets the hots for his visiting cousin, who is played by Denise Richards. Sure, it might be natural to think your cousin is attractive, but to actually make the moves on them is another thing entirely. Yes, Ross is pathetic and lonely at this point in the series, but to go as far as to actively hit on your cousin is a new low that is even a bit out of character for Ross.