I would certainly suspect that this might possibly be the case, but there could be other explanations for this situation.
My Girlfriend's Vagina Has Widened Recently. Is This A Sign Of A Larger Penis?
I don't think so could it be possible that she'd be near her period?
A vagina is highly elastic and can "stretch" to accommodate any size of human penis and yet still return to its normal state. It will NOT stretch out and stay that way. Even after a vaginal birth it will return to its normal size. More than likely, you have become accustomed to the feel and it doesn't "seem" as snug as it was before, when in all actuality it really is. Perhaps she doesn't use the same muscle control as she did earlier in your relationship. Its the control of the muscles that makes the vagina feel lose or tight.
