The primary reason for having a loose vagina is childbirth. When you are giving birth to a child, your vagina is stretched beyond normal which is why you have a loose pussy. It may take you as many as 6 months to have a tight vagina again. It takes some time for your body to tighten vaginal walls again. However, if you are in your 20s, it might be relatively easier for you to tighten your vagina. Vaginal tightening is an easier process when you are young because our body produces a lot of estrogen but as you get old, that is give birth in your 30s or 40s, it becomes difficult for your body to make your vag tighter.
Another reason what makes a vagina loose could be drug abuse which can make your vaginal walls dry and less elastic. However, not all hope is lost and you can still tighten your vag if you follow the instructions laid out in this book.