Alisha Aughey, 27, of Craigie, Wellingborough, and Shannon Walker, 23, of Gardeners View, Northampton, appeared at Northampton Magistrates’ Court on Saturday, 16 September.
Aughey was remanded in custody pending a further hearing at Northampton Crown Court on Tuesday, 19 September.
Walker was remanded in custody and is due to appear at Northampton Crown Court on Wednesday, 18 October.
A 21-year-old man from Northampton was also arrested in connection with the incident and has been released from police custody pending further investigation.
The incident took place in Burns Road, Wellingborough at about 1.20pm on 14 September, when the victim was crossing a road near the junction with Ruskin Road.
The victim sustained serious but non-life threatening injuries and was taken to hospital for treatment.