You must know your girl to grab her attention and than take romance to next level and know about her body as well. You should satisfy her needs both physical and emotional. Don’t you guys want to make her remember all the sweet moments you both share? No one has to carry the guilt that they were unable if you both are satisfied. Also, you must be aware of woman’s health.
Their lady part doesn’t stretch.
The theory is rubber band which mean they might stretch but then they come back to their original shape as well.