Wales face USA, who like South Africa are ranked above Wales, on Saturday, 26 September, also at Cardiff Arms Park, in their second outing of the new WXV campaign.
And while Wales will enjoy their deserved celebrations, co-captain Kate Williams is already talking about the importance of backing the performance up.
“After all of the tough times we have been through, as a team and Welsh rugby generally, we are going to keep working for the positive feeling to continue,” she said.
“What we want out of this WXV Series is more wins.
“Today just proved that what we’ve been doing works and we’ll be able to change our gameplan for USA next week.”
Lynn will be waiting on the fitness of scrum-half Seren Lockwood after she failed to return to the pitch after a head injury assessment, but he could be boosted by the return of Carys Cox, who gives him another exciting option in the backline.
Until then, he and Wales will enjoy victory before the work starts again on Monday.