The 24-year-old back-row forward scored two of England’s five tries either side of half time as they dominated the home team on a rainy evening in Scotland.

Substitute Lucy Demaine also got on the score sheet to mark her dream England debut and La Toya Mason orchestrated the tempo of the match from scrum half on her 50th appearance.

Bristol blindside flanker Millar-Mills earned herself player of the match with a stunning performance in the set piece and breakdown.

“It’s amazing,” said Millar-Mills. “I don’t know what to say; it’s the end of the game and I’m knackered but I’ve never got player of the match before. Chuffed.”

La Toya Mason showed her experience and composure to set up Millar-Mills for her first try from the back of a scrum.

“It was awesome play off the scrum, Sarah Hunter ran off it and La Toya did an awesome pass to put me in the space. For the second one, I think the full back over chased and Lotte (Clapp) shouted at me to go and I went and did what I was told.”

England battled hard in the first half to frustrate Scotland with a high intensity in defence which forced mistakes to creep into the Scottish play.

Scotland came close to scoring on a number of occasions in the first half but England’s organisation and maturity in their style of play kept them in control, capitalising on Scotland’s errors to earn a 15-0 lead by half time.

England Lead Coach Scott Bemand said: “Scotland turned up to try and played well. Our biggest plus was our energy in defence, managing to shut out a pretty spirited Scotland team. A good contest but we got what we came here for.”