High bro, this “flowering stretch” is completely normal as they try and outgrow surrounding vegetation in order to get the most sun possible to ensure higher chances of reproduction plus, a longer internodal distance means more space for flower clusters, and better light penetration.
The reason for those 2 plants to strech while the other stopped streching for a while. Is because the other 3 matured faster then those 2 girls. You can see that the 3 other plants are really focussing on growing buds while the 2 girls that are a bit behind still try to outgrow the other plants before putting her energy in making those buds bigger, fatter and juicy.
All 5 plants look great!
Enjoy the rest of your grow!