hi there - you need to contact your local church as every church of england or anglican rev is different.
Generally the tradition is 2 godmothers + 1 god father if a girl and 2 godfathers + 1 godmother for boys. they have to be baptised christen themselves.
your reverend however might b casual like ours and not mind how many but we are still being tradition with our daughters baptism in october (2 x gm + 1 x gf),,

hth