Wales made a losing start to the 2014 Women's Rugby World Cup after going down 26-0 to hosts France.
Marion Lievre scored twice in the first half while Shannon Izar also crossed to give France a 19-0 half-time advantage and Elodie Poublan added another score late on as the Six Nations champions triumphed in Marcoussis.
The bonus-point win puts France top of Pool C on five points, one ahead of Australia with South Africa and Wales still to get off the mark.
The French - who beat Wales 27-0 in the Six Nations in February - had the match all-but wrapped up by the interval following a devastating 13-minute spell which saw them run in three tries without reply.
Winger Lievre broke the deadlock in the 25th minute when she intercepted Wales fly-half Elinor Snowsill's pass and raced three-quarters of the pitch to touch down, with Sandrine Agricole adding the extras.
France then scored twice in four minutes with Izar going over before Lievre touched down her second try. Agricole slotted over a superb touchline conversion for Lievre's try, having missed her previous two-point effort.
Wales continued to battle hard in the second half but were unable to get on the scoresheet and two minutes from the end France added a fourth try through replacement Poublan, who barged through two defenders on the line to earn her side their bonus point.