Kuzmina led from the first shoot to the finishing line for her first win World Cup win after 13 events in the women's 7.5km sprint on Thursday with Shipulin repeating the trick 24 hours later.
Like his sister, who won the Olympic 7.5km sprint title at Vancouver 2010, Shipulin shot clear before recording a time of 22:45.8minutes to win by 12.8 seconds in Antholz-Anterselva.
It was only the 25-year-old's second top-three finish of the season, having finished third in the 12.5km pursuit in Oestersund, with Emil Hegle Svendsen and Jakov Fak completing the top three.
Shipulin trailed Austria's Friedrich Pinter despite shooting clean in the prone however the Russian was to do the same in the standing to take a lead that he wasn't to relinquish in Italy.
He held a 6.9-second lead over Andreas Birnbacher following the standing but the German was to finish fourth behind Svendsen, who had to tour the penalty loop once after the prone, and Fak.
Svendsen shot clean in the standing and made up a 19-second deficit on Birnbacher with 1.2km to go to take second while Fak, who missed one target overall, was a further 7.6 back in third.
Martin Fourcade was sixth, maintaining his lead at the top of the overall World Cup standings, although Svendsen is now only 59 points away from the Frenchman in second.
- Sports & Recreation