Amy Day scored two of Wales Womens' four tries in a dominant Six Nations win over Scotland Women at Cross Keys.
Jamie Kift scored the opening try after a Caryl Thomas had been hauled down short of the line after a fine break.
Rachel Taylor finished off a flowing move to score Wales' second try, and Day pounced with two scores either side of half-time to take Wales clear.
A rift of replacements disrupted Wales' second-half play but they kept their line in tact to deny the Scots a score.
The home side, whose opening match in Ireland was abandoned at half-time last Sunday with the home side leading 10-3, will face England in Twickenham next on 25 February.
Wales Women: Rosie Fletcher; Charlie Murray; Adi Taviner; Philippa Tuttiett; Caryl James; Naomi Thomas; Amy Day; Caryl Thomas; Rhian Bowden; Jenny Davies; Vicky Owens; Shona Powell-Hughes; Sioned Harries; Jamie Kift; Rachel Taylor (capt).
Replacements: Lowri Harries; Megan York; Sian Williams; Clare Flowers; Laura Prosser; Rebecca De Filippo; Mared Evans.
Scotland Women: Stephanie Johnston (RHC Cougars); Caroline Collie (OA Saints), Laura Steven (Murrayfield Wanderers), Lisa Martin (Murrayfield Wanderers), Sarah Dixon (Stirling County); Tanya Griffith (RHC Cougars), Louise Dalgliesh (RHC Cougars); Suzanne McKerlie-Hex (Murrayfield Wanderers), Sarah Quick (Murrayfield Wanderers), Tracy Balmer (Worcester), Anna Swan (RHC Cougars), Jemma Forsyth (Hillhead/Jordanhill), Tess Forsberg (Richmond), Ruth Slaven (Murrayfield Wanderers), Lindsay Wheeler (Richmond).
Replacements: Lindsey Smith (Darlington Mowden Park Sharks), Heather Lockhart (Hillhead/Jordanhill), Katherine Muir (RAF), Beth Dickens (Murrayfield Wanderers), Charlotte Veale (London Wasps), Lisa Ritchie (Carlisle), Katy Green (Murrayfield Wanderers).